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Experience Level
Mid to Senior
About the job
Join Mercoin as a Frontend Software Engineer and be part of a revolutionary team that is redefining the way people interact with digital currencies and blockchain technology. This role is essential for enhancing our web applications and supporting our mission to facilitate seamless value exchange across platforms.
About Mercoin
At Mercoin, we believe in harnessing the power of technology to foster connectivity and unlock potential for individuals worldwide. Founded in 2013, our mission is rooted in sustainability and innovation, aiming to create a richer society through the circulation of various forms of value beyond just physical goods and currency.
As a Frontend Software Engineer, you will engage in developing web applications that support our services, focusing on both B2B and B2C aspects. Your specific tasks will include:
Developing and enhancing growth features for Mercoin
Creating dashboards and application forms for partner merchants
Building tools to aid merchant and customer support
Contributing to B2C service development, including Merpay
Our tech stack includes HTML, CSS, JavaScript, TypeScript, React, and Next.js, deployed on Google Cloud Platform.
Unique Challenges
Work on diverse web development projects within the Mercoin frontend team.
Ensure high standards for security, performance, and accessibility due to the financial nature of our applications.
Engage with blockchain technology to deliver innovative solutions and enhance customer experiences.
Join Mercoin as a Frontend Software Engineer and be part of a revolutionary team that is redefining the way people interact with digital currencies and blockchain technology. This role is essential for enhancing our web applications and supporting our mission to facilitate seamless value exchange across platforms.About MercoinAt Mercoin, we believe in harnes…
Join us as a Backend Software Engineer for Mercoin, where your Japanese language skills will be an asset. This position is crucial for the development of innovative services in the cryptocurrency and blockchain space.About the RoleEmployment Type: Full-timeWork Style: Flexible working hours (no core time)Location: Roppongi, Minato CityFor more details, visit our career site at Job Listings.About Mercari GroupWe aim to circulate all forms of value and expand opportunities for everyone.Founded in 2013 by Shintaro Yamada, Mercari was born from a desire to create a richer society in light of the Earth's limited resources. We believe in enhancing everyone’s potential by facilitating the exchange of value beyond just physical goods and money.Through the power of technology, we connect people around the globe and strive to create a world where everyone's potential is realized. For insights into our company culture, refer to the Mercari Culture Document.Team and MissionOur engineering principles define our shared beliefs and actions, reinforcing Mercari's mission, values, and culture from an engineering perspective.Join us in our mission to innovate in the cryptocurrency space, enhancing user experiences and financial services.ResponsibilitiesDevelop and operate Bitcoin trading services.Create web applications and APIs using Go.Design interfaces for microservices using Protocol Buffers and gRPC.Analyze user behavior through quantitative and qualitative measures to improve services.Architect application requirements and select middleware.Tune performance and monitor microservices.Join us in shaping the future of digital finance!
This position requires proficiency in the Japanese language. Please note that the job description is only available in Japanese. 本ポジションは英文JDの用意がありません。Quality Assurance Software Engineer – MercoinEmployment Type: Full-timeWork Style: Flexible working hours (No core or flexible time)Location: RoppongiFor more details, please visit our career site.About Mercari GroupCreating a sustainable future by circulating all valuesFounded in 2013 by Shintaro Yamada during a world trip, Mercari was born out of a desire to explore what we can do to create a richer society amidst limited global resources. We believe that by circulating all forms of value, beyond just physical goods and money, we can enhance the options available for individuals and society to realize their aspirations. Through the power of technology, we strive to connect people around the world and create an environment where everyone can unleash their potential. For more about our guiding principles, please refer to the Mercari Culture Document.Team MissionMercari's Engineering PrinciplesThe Engineering Principles at Mercari establish a common understanding that serves as the foundation of our engineering beliefs and behaviors. These principles complement the organization's identity (Mercari's mission, values, and culture) from an engineering perspective.Our Engineering Principles clarify the ideal state we aspire to achieve in the long term, ultimately contributing to the fulfillment of Mercari's mission.Passion For The ProductGrow TogetherSolve Through MechanismsCollaborate OpenlyFor further details, please visit the following link.Engineering CultureAbout MercoinMercoin aims to create a new economy where diverse values circulate, focusing on planning and developing services related to cryptocurrency and blockchain.By engaging in cryptocurrency ventures under the Mercari brand, we aim to discover various possibilities and create new values beyond just goods and money, facilitating their circulation.By leveraging blockchain technology to enable value exchange, we strive to create new forms of transactions that allow anyone to easily exchange all values, including services and digital content.Mercoin's QA Engineering TeamThe QA team at Mercoin is dedicated to ensuring high quality for our innovative products and services. By combining traditional QA methods with AI-powered testing solutions, we optimize the quality assurance process. Our team's efforts span a wide range of areas, including specification reviews, test planning, execution, bug reporting, and process improvements for web and mobile applications and backend systems.As a QA Engineer at Mercoin, you will have a broad responsibility for enhancing the overall quality of our products and services, playing a vital role within a small and proactive team environment.Development EnvironmentTools Used: GitHub, XCode, Android Studio, Playwright, BigQuery, Looker, Datadog, Notion, Slack, Jira, Confluence, TestRailDevelopment Methods: Agile (Scrum, Kanban, etc.)AI Support Tools: Google Gemini, Cursor, ChatGPT, Notion AI, NotebookLM, Claude, Claude CodeKey ResponsibilitiesQuality assurance and testingDesigning test plans with AI integration, driving AI-based test case and code generation, and promoting test automationContinuous evaluation and validation of the latest AI tools and techniques for integration into QA processesDriving test activitiesTest planning, design, execution, and closure tasksNegotiation and coordination with PMs and developersEnhancing and automating test efficiency for mobile apps, web, and backendDesigning and implementing API tests and regression tests, as well as maintenanceImprovement tasks regarding the entire development processSpecification reviews and enhancements
Join our team as a Senior Software Engineer in Quality Assurance at Mercoin, where you'll play a pivotal role in ensuring the excellence of our innovative products and services. This position is designed for individuals who thrive in a dynamic environment and possess a strong passion for quality assurance.Our QA team utilizes a combination of traditional testing methodologies and cutting-edge AI-driven solutions to optimize our quality assurance processes. You will engage in various activities, including reviewing specifications, planning and executing tests, reporting bugs, and enhancing processes across web and mobile applications as well as backend systems.If you are looking for a role where you can actively contribute to enhancing the overall quality of our products and services, this is the perfect opportunity for you!
Join Our Team as a Backend Product Engineer at MercoinWe are looking for a passionate Backend Product Engineer to join our Mercoin team at Mercari! In this role, you will develop and maintain our innovative cryptocurrency and blockchain services, enhancing the user experience and empowering financial transactions.This position requires proficiency in Japanese. Please note that the job description is only available in Japanese.About MercariShaping a Sustainable Future Through Value ExchangeFounded in 2013 by Shintaro Yamada during a global journey, Mercari aims to tackle the challenges posed by our finite resources. Our mission is to circulate all forms of value—beyond just physical goods and currency—enabling everyone to achieve their aspirations and contribute to society. With the power of technology, we connect people around the globe, creating a world where everyone's potential can be realized.Our Engineering CultureOur engineering principles embody the beliefs and actions that shape our organization. These shared values define our mission, culture, and vision, guiding us toward our long-term objectives. For more details, visit our Engineering Culture Page.About the Mercoin Backend TeamOur focus is on developing services related to cryptocurrencies and blockchain.We aim to simplify financial services through innovations such as receiving sales proceeds in Bitcoin and integrating credit, cryptocurrency, and asset management functions into a unified wallet experience.We are pioneering new transaction methods by leveraging blockchain technology for value exchanges, including NFTs.Our team develops core backend systems for cryptocurrency trading and user management, collaborating closely with product and trading teams to drive product growth.ResponsibilitiesDevelop and operate Bitcoin trading servicesCreate web applications and APIs using GoDesign interface specifications between microservices using Protocol Buffers and gRPCAnalyze user behavior logs to measure effectiveness and improve servicesDesign architecture based on application requirements and select suitable middlewareOptimize performance, monitoring, and alerting for microservicesDevelopment EnvironmentProgramming Language: GoInfrastructure: Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud Storage, Pub/Sub, etc.)Configuration Management: TerraformAnalytics: BigQuery / Looker / Data StudioMonitoring: Datadog / PagerDutyCI/CD: CircleCI
This position requires proficiency in the Japanese language.About the RoleAs a Corporate Planning Specialist at Mercoin, you will play a critical role in shaping our business strategy and driving executive decision-making. You will engage with leadership to formulate strategic questions that promote long-term growth and ensure the company meets its objectives.Our MissionAt Mercoin, we are dedicated to creating a richer society by circulating value in all forms. Our journey began in 2013 with the launch of our flea market app, and we continue to connect people through technology and foster opportunities for everyone.Your ResponsibilitiesLead strategic planning discussions with management, focusing on mid to long-term growth strategies.Conduct variance analyses and KPI monitoring, collaborating with business units to identify and address challenges.Optimize our unit economics for scalability and ensure alignment with our long-term roadmap.Design and implement strategies to identify growth potential and address bottlenecks in our business structure.Join UsIf you are passionate about strategic planning and eager to contribute to a dynamic team, we invite you to apply and help propel Mercoin to the next level.
Join Mercari as a Product Manager for Mercoin, where your expertise in product management will help shape the future of cryptocurrency transactions. This role requires proficiency in Japanese, as the job details are provided in Japanese only.Position OverviewEmployment Type: Full-timeWork Style: Flexible working hours with no core timeLocation: Roppongi, Minato CityFor further details, please check our careers page.About Mercari GroupFounded in 2013 by Shintaro Yamada during a global journey, Mercari was born from the desire to create a richer society despite limited Earth resources. Our mission is to circulate all forms of value and expand the possibilities for everyone. By leveraging technology, we connect people worldwide and enable them to realize their aspirations while contributing to society.To learn more about our vision and culture, please visit the Mercari Culture Doc.Team MissionMercoin launched its cryptocurrency trading service in March 2023, aiming to circulate value and expand the possibilities for everyone. In just over a year, we have surpassed 3 million users, with 90% experiencing cryptocurrency for the first time.As part of our product team, you will develop innovative products to engage even more customers.ResponsibilitiesManage product development for Mercari's cryptocurrency trading service.Conceive and analyze plans for service growth.Define requirements, prioritize tasks, and oversee progress in development.Communicate effectively with various departments.You will collaborate with designers, UX researchers, engineers, data analysts, and marketers to lead product development that directly contributes to our business goals.Unique ChallengesIn this role, you will have the opportunity to:Realize innovative experiences through cryptocurrency, integrating features seamlessly into Mercari's existing financial services.Utilize Mercari's extensive customer base of over 23 million monthly users to provide cryptocurrency-related functionalities.Create new value exchange models using blockchain technology for services and digital content.QualificationsRequired Skills:Strong alignment with Mercari Group's mission and values.Minimum of 3 years of product management experience with corporate products.Experience in creating specification documents and requirements definitions.Preferred Skills:Experience managing large-scale consumer products.Background in software development as an engineer.Data analysis experience using SQL or similar tools.Professional experience using English.Experience utilizing AI in projects.
Join Mercoin as a Risk Management Specialist to contribute to our innovative financial services. This role requires proficiency in Japanese, as the job description is available in Japanese only.About the Mercoin TeamThe Risk Management team at Mercoin is dedicated to managing specific risks associated with our cryptocurrency-related services while implementing enterprise-wide risk management strategies. As we introduce groundbreaking financial services, we seek individuals who can think flexibly and adapt traditional risk management techniques to our unique environment. Let's collaborate to challenge norms and build innovative risk management solutions.Key ResponsibilitiesDevelop and propose risk management policies.Establish risk management frameworks and facilitate meetings.Conduct risk assessments and coordinate with internal and external stakeholders to devise response strategies.Monitor risk mitigation measures.Engage in various tasks related to risk management.Unique ChallengesSupport the rapid launch of new services under appropriate risk controls.Continuously update the risk management framework to keep pace with business evolution.Leverage traditional risk management knowledge while pioneering new methodologies for diverse business areas at Mercoin.QualificationsRequired Experience and Skills:Alignment with the mission and values of Mercari Group.Over 5 years of experience in risk management across various sectors.A willingness to innovate beyond traditional financial institution methods.Preferred Experience and Skills:Experience in enterprise risk management (ERM).Risk management experience in fintech or startups.Consulting or advisory experience in risk management from consulting firms or audit companies.Language Proficiency:Japanese: Proficient (CEFR - C1) - RequiredEnglish: Independent (CEFR - B2) - PreferredFor more insights into our mission and values, visit our mission page.
This role requires proficiency in the Japanese language. Please note that the job description is available only in Japanese.Backend Software Engineer - MerpayEmployment Type: Full-timeWork Style: Flexible working hours (No core time, no flexible time)Location: RoppongiFor more details, please visit our career site.About the Mercari GroupCirculating value to expand everyone’s potentialFounded in 2013 by Shintaro Yamada after a journey around the world, Mercari was born from the desire to create a more abundant society amid limited global resources. We believe that by circulating all forms of value, not just physical goods and money, we can provide everyone with the opportunity to realize their ambitions and contribute to society.Through the power of technology, we aim to connect people globally and create a world where everyone can unleash their potential. For more on our guiding principles, please refer to the Mercari Culture Document.Team MissionMercari Engineering Principles: These principles form the foundation of belief and action within the Mercari engineering organization, complementing our Mission, Values, and Culture from an engineering perspective. They define the ideal state we aim to achieve in order to ultimately fulfill Mercari's mission.Passion for the ProductGrow TogetherSolve Through MechanismsCollaborate OpenlyFor more information about our engineering culture, please visit here.Work Style and Team CultureThis recruitment will focus on hiring for the Merpay's Balance Team and the MerCard/Code Payment/Online Payment Team. Depending on your preferences and experience, we will determine which team you will be assigned to.The engineering team at Merpay comprises highly specialized members from the Mercari Group, organized into teams by business domain. We engage in architecture discussions on Slack, exchange Pull Requests on GitHub, and foster an open culture of knowledge sharing. Weekly study sessions like Go Friday allow all members to enhance their skills together, even those without prior experience in developing web applications with Go.For more on Mercari's mission and values, please refer to this link.ResponsibilitiesDevelopment of microservices and APIs using GoInterface design between microservices using Protocol Buffers and gRPCQuantitative and qualitative analysis of user behavior logs for measuring the effectiveness of initiatives and improving servicesArchitectural design based on application requirements, including middleware selectionPerformance tuning, monitoring, and alert response for microservicesDevelopment EnvironmentProgramming Language: GoInfrastructure: Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud SQL, Storage, Dataflow, Pub/Sub, etc.)Configuration Management Tools: TerraformAnalytics Platform: BigQuery / Looker / Data StudioMonitoring: Datadog / PagerDuty / SentryCI/CD: SpinnakerKnowledge Tools: Confluence / NotionOthers: GitHub / SlackDevelopment Methodologies: Agile (Scrum, Kanban, etc.)
Join Our Team as a Backend Engineer (AI/LLM)Are you passionate about harnessing the power of artificial intelligence and large language models to create innovative solutions? At Mercari, we are looking for a skilled Backend Engineer to join our dynamic AI/LLM team within the Mercari Marketplace. Your expertise will help us design, develop, and maintain robust backend systems that drive our cutting-edge AI and machine learning applications.Your role will involve close collaboration with machine learning researchers, data scientists, and other stakeholders to deliver impactful user experiences. If you are eager to make a difference and contribute to a mission that empowers people through technology, we would love to hear from you!
Join Mercari as an Android Engineer for Mercoin, where your expertise will contribute to innovative cryptocurrency and blockchain services. This role requires proficiency in the Japanese language, as the job description is available in Japanese only.Position OverviewEmployment Type: Full-time or ContractWorking Style: Flexible hours (no core time)Location: Roppongi, Minato CityFor more details, please refer to our career site.About Mercari GroupAt Mercari, we believe in creating a richer society by promoting the circulation of value in various forms. Founded in 2013 by Shinjiro Yamada, Mercari was born from a vision to tackle global resource limitations. We connect people through technology, fostering an environment where everyone can realize their potential. To learn more about our culture and mission, visit the Mercari Culture Doc.Team MissionAs part of Mercoin, you will work on developing services related to cryptocurrencies and blockchain technology. Our goal is to simplify financial services, allowing users to receive payments in Bitcoin and access integrated financial solutions through a single wallet.ResponsibilitiesDesign and develop new features for the Mercoin platform.Collaborate with backend teams to implement API designs.Engage in team development with project managers, designers, and QA engineers.Improve CI environments and automated testing frameworks.Technological EnvironmentProgramming Language: KotlinDevelopment Environment: Android StudioBuild Tools: GradleCI/CD: GitHub ActionsAI Tools: Claude Code, Cursor, ChatGPT, Notion AI, NotebookLM, Google Gemini, etc.Other Tools: GitHub, Slack, Figma, JIRA, Confluence, Notion, TestRail, Firebase Test LabUnique ChallengesWith over 3 million users utilizing our Bitcoin trading service, your contributions will significantly impact the industry.
Position OverviewWe are seeking a dynamic Chief Operating Officer (COO) to lead our fintech initiatives at Merpay and Mercoin. This role is pivotal in strategizing and executing innovative business plans that will drive exceptional growth.About MercariFounded in 2013 by Shintaro Yamada, Mercari is dedicated to revolutionizing the way value is circulated, empowering individuals worldwide to realize their aspirations. Our marketplace app promotes a sustainable economy by facilitating the exchange of all types of value. We leverage technology to foster connections and opportunities across the globe.Team MissionAs the COO, you will spearhead the strategic direction of our fintech business, focusing on payments, credit, and cryptoassets. Your vision will drive our ambition for 10X growth, ensuring that our strategies align with the broader goals of the Mercari Group.Key ResponsibilitiesDevelop and implement business strategies for our payment and cryptoasset divisions.Identify growth opportunities and foster collaboration across teams to elevate business performance.
We are seeking a dedicated IT Risk & Security Specialist to join our Mercoin team within Mercari. This role is essential for enhancing our information security and system risk management efforts in the fintech sector. As a pivotal member of our organization, you will contribute to developing a robust system that fosters long-term trust with our customers.Your responsibilities will include collaborating with various departments to implement initiatives aimed at enhancing internal awareness, leading the formulation and execution of policies and processes, and ensuring compliance with industry standards.Join us at Mercari, where our mission is to create a richer society by circulating value in all its forms. Our innovative fintech solutions, including the popular Mercari app and Merpay payment service, are designed to empower individuals and contribute positively to society.Key Responsibilities:Develop and implement information security and system risk management strategies.Conduct risk assessments and establish mitigation measures.Design, document, and continuously improve security processes.Organize and conduct internal training on information security.Support various financial projects focusing on security and risk management.Lead incident management and response to security breaches.Oversee external vendor security management and ensure compliance.Facilitate audits and inspections related to information security.This position also offers unique challenges such as building an IT Risk Management framework utilizing AI technologies and enhancing our governance, risk, and compliance (GRC) posture from a managerial perspective.
Join Our Team as an iOS Software Engineer at Merpay!Are you passionate about building innovative financial solutions? At Merpay, we are seeking a dedicated iOS Software Engineer to drive the development of cutting-edge payment and finance services. With a focus on our mission of creating a seamless society through trust, you will collaborate with a dynamic team of product managers, designers, and backend engineers.As a Full-time employee, you will enjoy flexible work hours without core time requirements, allowing you to achieve a healthy work-life balance. Our office is situated in the vibrant area of Roppongi, Tokyo, a hub of creativity and technology.
Mercari, Inc. offers a Software Engineer Internship based in Minato City, Tokyo. Interns join a team of experienced engineers and contribute directly to projects that support the Mercari platform, which serves millions of users. Role overview Interns work closely with other engineers on real product features and improvements. The team environment encourages collaboration and practical learning, with opportunities to write and review code as part of daily tasks. What you will do Work with engineers to develop and enhance product features Participate in code writing and code reviews within the team Gain hands-on experience using software development tools and workflows Why Mercari Projects have a direct impact on a large and active user base The workplace encourages creativity and ongoing learning Opportunities to build technical and teamwork skills in a collaborative environment This internship requires working onsite in Minato City, Tokyo, Japan.
Intellectual Property Specialist - Merpay/MercoinEmployment Type: Full-timeWork Style: Flexible hours (No core time)Location: RoppongiFor more details, please check our career site.About the Mercari GroupCirculating all values to expand everyone's potential.Founded in 2013 by Shinjiro Yamada, Mercari arose from the challenge of creating a more prosperous society amidst limited global resources. We believe in creating opportunities for everyone to realize their aspirations by circulating all forms of value, not just physical goods and money.Through the power of technology, we aim to connect people worldwide and realize a world where everyone’s potential can be unleashed. For more on our guiding principles, visit our Mercari Culture Doc.Team MissionThe Fintech Legal Team is committed to advancing the intellectual property strategy of the Mercari Group, which includes the dual pillars of "Open & Defensive" and the AI-native approach "ChizAI-Native." We work collaboratively with stakeholders (Open) while maintaining robust defenses for our core assets (Defensive). Our efforts focus on enhancing IP operations and decision-making speed through AI, supporting business growth through IP activities.We welcome applications from those who resonate with our mission and values and who can actively promote "Open & Defensive" and "ChizAI-Native." For more details on our mission and values, please see here.Job ResponsibilitiesConducting research, discovery, filing, and securing intellectual property rights (patents, trademarks, designs, etc.)Supporting the Fintech business and new ventures within the Mercari GroupManaging disputes and negotiations related to intellectual property rightsPromoting the overall IP strategy within the Mercari GroupUnique ChallengesAs an IP specialist at Mercari, you will engage in a broad range of IP activities (patents, trademarks, designs, copyrights, contracts), enhancing your skill set.Experience the fast-paced nature of the business while handling IP tasks such as filings and clearances, gaining a sense of partnership with the business.Engage in the transition to AI-driven IP operations, allowing for experimentation and the development of new methodologies.QualificationsRequired Experience and SkillsA strong alignment with the mission, values, and themes of the Mercari Group and its companiesOver 3 years of experience in software patent prosecutionProactive in the AI-driven transformation of IP operationsPreferred Experience and SkillsPatent Attorney certificationExperience in trademark and copyright-related tasksLeadership experience in litigation or licensing negotiationsLanguage SkillsJapanese: Proficient (CEFR - C1)English: Independent (CEFR - B2) preferredFor further details on CEFR, please visit here.Learn More About the Mercari GroupCareer Site: https://careers.mercari.com/
Internship|Remote|Remote — Minato City, Tokyo, Japan
Join Our Innovative TeamAt Mercari, we are continuously evolving, and we invite you to be part of this dynamic journey. As a Software Engineer Intern, you'll have the unique opportunity to contribute to our innovative projects and help shape the future of our organization. This is more than just an internship; it's a stepping stone to becoming a leader in the tech industry.Your RoleAs a Software Engineer Intern, you will work closely with experienced professionals in a collaborative environment. You'll engage in problem-solving, design, and implementation of software solutions that directly impact our user experience.Who We Are Looking ForWe welcome applications from individuals graduating in October 2027 or April 2028.This is an intern position; applicants must be eligible to work in Japan. Visa support and accommodation will be provided for overseas candidates.Applicants should be available for more than 20 hours per week, with a recommended internship duration of 2-3 months. Please discuss any preferences for a different duration with our recruiters.Office location: Remote or at our Roppongi office in Japan.Application Deadline: June 15, 2026, 23:59 (JST)
Join our dynamic team as an IT Risk & Security Specialist at Mercoin, where you will play a pivotal role in safeguarding our fintech operations. This position demands proficiency in Japanese, as the job description is provided in Japanese only.About MercoinAt Mercari, we strive to create a sustainable society by enabling the circulation of values beyond physical goods and currency. Since our inception in 2013, we have believed in empowering individuals and contributing positively to society through innovative solutions.Our MissionWe are on a mission to connect people globally through technology, fostering an environment where everyone can unlock their potential.Team ObjectivesEstablish a robust information security and system risk management framework to earn long-term trust from our customers.Implement security governance that supports agile management, setting new standards in a rapidly evolving environment.Key ResponsibilitiesAs an IT Risk & Security Specialist, you will oversee information security and system risk management for Mercoin, contributing to the enhancement of governance and compliance across the entire group. Collaborate with various departments to develop and implement strategies aimed at increasing internal awareness and lead the formulation and execution of policies and processes.Formulate strategies and establish frameworks for information security and system risk management.Conduct risk assessments and implement mitigation strategies while continuously monitoring system risks.Design and improve processes related to information security and system risk management.Plan and execute internal education and awareness initiatives regarding information security.Support various financial projects from an information security and system risk management perspective.Manage incidents, analyze and report system failures, and lead responses to security incidents.Ensure rigorous security management for external vendors and services.Facilitate audits and inspections related to information security smoothly.Additionally, you may take on compliance-related tasks as needed.Unique ChallengesBuild a new IT risk management framework leveraging AI and LLM technologies.Strengthen GRC management from a business perspective across the fintech sector and the broader Mercari group.Collaborate with a talented engineering team to establish next-generation management standards in a rapidly changing environment.QualificationsAlignment with Mercari’s mission and values.Experience in information security and system risk management, preferably in the fintech sector.
Are you a passionate iOS Software Engineer looking to make a significant impact in the world of payment and financial services? Join Merpay, a pioneering team within Mercari, where you will contribute to developing innovative financial products that enhance user experiences.Your RoleAs part of our dynamic team, you will design and develop new features for our credit services, collaborating closely with product managers, designers, and backend engineers.Utilizing your expertise in Swift, you will work on developing functionalities related to personal credit services and smart money solutions.In addition to feature development, you will play a key role in improving code quality, conducting thorough testing, and enhancing our development processes.We support cross-functional growth; you will have the opportunity to explore roles beyond iOS such as Android, Web, or backend development.Embrace AI technologies responsibly while maintaining our commitment to security and user trust.We encourage sharing your knowledge and expertise through participation in conferences and writing for our engineering blog.
Join Mercari as the AML Risk & Compliance Team Manager for Merpay / Mercoin, where your expertise will directly contribute to our mission of promoting sustainable business growth through effective AML/CFT practices. This role requires proficiency in Japanese and offers a flexible work environment without core hours.About Mercari GroupFounded in 2013 by Shinjiro Yamada after recognizing the importance of resource sustainability while traveling globally, Mercari aims to circulate all forms of value, empowering individuals and contributing to society. We leverage technology to connect people and create an environment where everyone can realize their potential.Team MissionWe are seeking a leader to manage the AML/CFT and economic sanctions compliance for our payment services, including Merpay and Mercoin. Your leadership will ensure that our operations are secure and compliant, safeguarding against money laundering and terrorist financing risks in our diverse business landscape.Key ResponsibilitiesLead the AML/CFT strategy and execute compliance measures.Analyze suspicious transactions and develop countermeasures.Summarize reporting for executive management.Establish policies to mitigate risks from organized crime.Define customer due diligence (CDD) and Know Your Customer (KYC) standards.Develop system requirements for AML/CFT-related operations.Adapt to regulatory changes and respond to inquiries from authorities.Unique ChallengesUtilize cutting-edge technology in the fintech industry to address money laundering risks creatively.Collaborate with management to establish AML/CFT frameworks for new business ventures.Manage risks across various services impacting over 23 million users.Engage with other companies and the cashless industry to share insights and initiatives.
Join Mercoin as a Frontend Software Engineer and be part of a revolutionary team that is redefining the way people interact with digital currencies and blockchain technology. This role is essential for enhancing our web applications and supporting our mission to facilitate seamless value exchange across platforms.About MercoinAt Mercoin, we believe in harnes…
Join us as a Backend Software Engineer for Mercoin, where your Japanese language skills will be an asset. This position is crucial for the development of innovative services in the cryptocurrency and blockchain space.About the RoleEmployment Type: Full-timeWork Style: Flexible working hours (no core time)Location: Roppongi, Minato CityFor more details, visit our career site at Job Listings.About Mercari GroupWe aim to circulate all forms of value and expand opportunities for everyone.Founded in 2013 by Shintaro Yamada, Mercari was born from a desire to create a richer society in light of the Earth's limited resources. We believe in enhancing everyone’s potential by facilitating the exchange of value beyond just physical goods and money.Through the power of technology, we connect people around the globe and strive to create a world where everyone's potential is realized. For insights into our company culture, refer to the Mercari Culture Document.Team and MissionOur engineering principles define our shared beliefs and actions, reinforcing Mercari's mission, values, and culture from an engineering perspective.Join us in our mission to innovate in the cryptocurrency space, enhancing user experiences and financial services.ResponsibilitiesDevelop and operate Bitcoin trading services.Create web applications and APIs using Go.Design interfaces for microservices using Protocol Buffers and gRPC.Analyze user behavior through quantitative and qualitative measures to improve services.Architect application requirements and select middleware.Tune performance and monitor microservices.Join us in shaping the future of digital finance!
This position requires proficiency in the Japanese language. Please note that the job description is only available in Japanese. 本ポジションは英文JDの用意がありません。Quality Assurance Software Engineer – MercoinEmployment Type: Full-timeWork Style: Flexible working hours (No core or flexible time)Location: RoppongiFor more details, please visit our career site.About Mercari GroupCreating a sustainable future by circulating all valuesFounded in 2013 by Shintaro Yamada during a world trip, Mercari was born out of a desire to explore what we can do to create a richer society amidst limited global resources. We believe that by circulating all forms of value, beyond just physical goods and money, we can enhance the options available for individuals and society to realize their aspirations. Through the power of technology, we strive to connect people around the world and create an environment where everyone can unleash their potential. For more about our guiding principles, please refer to the Mercari Culture Document.Team MissionMercari's Engineering PrinciplesThe Engineering Principles at Mercari establish a common understanding that serves as the foundation of our engineering beliefs and behaviors. These principles complement the organization's identity (Mercari's mission, values, and culture) from an engineering perspective.Our Engineering Principles clarify the ideal state we aspire to achieve in the long term, ultimately contributing to the fulfillment of Mercari's mission.Passion For The ProductGrow TogetherSolve Through MechanismsCollaborate OpenlyFor further details, please visit the following link.Engineering CultureAbout MercoinMercoin aims to create a new economy where diverse values circulate, focusing on planning and developing services related to cryptocurrency and blockchain.By engaging in cryptocurrency ventures under the Mercari brand, we aim to discover various possibilities and create new values beyond just goods and money, facilitating their circulation.By leveraging blockchain technology to enable value exchange, we strive to create new forms of transactions that allow anyone to easily exchange all values, including services and digital content.Mercoin's QA Engineering TeamThe QA team at Mercoin is dedicated to ensuring high quality for our innovative products and services. By combining traditional QA methods with AI-powered testing solutions, we optimize the quality assurance process. Our team's efforts span a wide range of areas, including specification reviews, test planning, execution, bug reporting, and process improvements for web and mobile applications and backend systems.As a QA Engineer at Mercoin, you will have a broad responsibility for enhancing the overall quality of our products and services, playing a vital role within a small and proactive team environment.Development EnvironmentTools Used: GitHub, XCode, Android Studio, Playwright, BigQuery, Looker, Datadog, Notion, Slack, Jira, Confluence, TestRailDevelopment Methods: Agile (Scrum, Kanban, etc.)AI Support Tools: Google Gemini, Cursor, ChatGPT, Notion AI, NotebookLM, Claude, Claude CodeKey ResponsibilitiesQuality assurance and testingDesigning test plans with AI integration, driving AI-based test case and code generation, and promoting test automationContinuous evaluation and validation of the latest AI tools and techniques for integration into QA processesDriving test activitiesTest planning, design, execution, and closure tasksNegotiation and coordination with PMs and developersEnhancing and automating test efficiency for mobile apps, web, and backendDesigning and implementing API tests and regression tests, as well as maintenanceImprovement tasks regarding the entire development processSpecification reviews and enhancements
Join our team as a Senior Software Engineer in Quality Assurance at Mercoin, where you'll play a pivotal role in ensuring the excellence of our innovative products and services. This position is designed for individuals who thrive in a dynamic environment and possess a strong passion for quality assurance.Our QA team utilizes a combination of traditional testing methodologies and cutting-edge AI-driven solutions to optimize our quality assurance processes. You will engage in various activities, including reviewing specifications, planning and executing tests, reporting bugs, and enhancing processes across web and mobile applications as well as backend systems.If you are looking for a role where you can actively contribute to enhancing the overall quality of our products and services, this is the perfect opportunity for you!
Join Our Team as a Backend Product Engineer at MercoinWe are looking for a passionate Backend Product Engineer to join our Mercoin team at Mercari! In this role, you will develop and maintain our innovative cryptocurrency and blockchain services, enhancing the user experience and empowering financial transactions.This position requires proficiency in Japanese. Please note that the job description is only available in Japanese.About MercariShaping a Sustainable Future Through Value ExchangeFounded in 2013 by Shintaro Yamada during a global journey, Mercari aims to tackle the challenges posed by our finite resources. Our mission is to circulate all forms of value—beyond just physical goods and currency—enabling everyone to achieve their aspirations and contribute to society. With the power of technology, we connect people around the globe, creating a world where everyone's potential can be realized.Our Engineering CultureOur engineering principles embody the beliefs and actions that shape our organization. These shared values define our mission, culture, and vision, guiding us toward our long-term objectives. For more details, visit our Engineering Culture Page.About the Mercoin Backend TeamOur focus is on developing services related to cryptocurrencies and blockchain.We aim to simplify financial services through innovations such as receiving sales proceeds in Bitcoin and integrating credit, cryptocurrency, and asset management functions into a unified wallet experience.We are pioneering new transaction methods by leveraging blockchain technology for value exchanges, including NFTs.Our team develops core backend systems for cryptocurrency trading and user management, collaborating closely with product and trading teams to drive product growth.ResponsibilitiesDevelop and operate Bitcoin trading servicesCreate web applications and APIs using GoDesign interface specifications between microservices using Protocol Buffers and gRPCAnalyze user behavior logs to measure effectiveness and improve servicesDesign architecture based on application requirements and select suitable middlewareOptimize performance, monitoring, and alerting for microservicesDevelopment EnvironmentProgramming Language: GoInfrastructure: Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud Storage, Pub/Sub, etc.)Configuration Management: TerraformAnalytics: BigQuery / Looker / Data StudioMonitoring: Datadog / PagerDutyCI/CD: CircleCI
This position requires proficiency in the Japanese language.About the RoleAs a Corporate Planning Specialist at Mercoin, you will play a critical role in shaping our business strategy and driving executive decision-making. You will engage with leadership to formulate strategic questions that promote long-term growth and ensure the company meets its objectives.Our MissionAt Mercoin, we are dedicated to creating a richer society by circulating value in all forms. Our journey began in 2013 with the launch of our flea market app, and we continue to connect people through technology and foster opportunities for everyone.Your ResponsibilitiesLead strategic planning discussions with management, focusing on mid to long-term growth strategies.Conduct variance analyses and KPI monitoring, collaborating with business units to identify and address challenges.Optimize our unit economics for scalability and ensure alignment with our long-term roadmap.Design and implement strategies to identify growth potential and address bottlenecks in our business structure.Join UsIf you are passionate about strategic planning and eager to contribute to a dynamic team, we invite you to apply and help propel Mercoin to the next level.
Join Mercari as a Product Manager for Mercoin, where your expertise in product management will help shape the future of cryptocurrency transactions. This role requires proficiency in Japanese, as the job details are provided in Japanese only.Position OverviewEmployment Type: Full-timeWork Style: Flexible working hours with no core timeLocation: Roppongi, Minato CityFor further details, please check our careers page.About Mercari GroupFounded in 2013 by Shintaro Yamada during a global journey, Mercari was born from the desire to create a richer society despite limited Earth resources. Our mission is to circulate all forms of value and expand the possibilities for everyone. By leveraging technology, we connect people worldwide and enable them to realize their aspirations while contributing to society.To learn more about our vision and culture, please visit the Mercari Culture Doc.Team MissionMercoin launched its cryptocurrency trading service in March 2023, aiming to circulate value and expand the possibilities for everyone. In just over a year, we have surpassed 3 million users, with 90% experiencing cryptocurrency for the first time.As part of our product team, you will develop innovative products to engage even more customers.ResponsibilitiesManage product development for Mercari's cryptocurrency trading service.Conceive and analyze plans for service growth.Define requirements, prioritize tasks, and oversee progress in development.Communicate effectively with various departments.You will collaborate with designers, UX researchers, engineers, data analysts, and marketers to lead product development that directly contributes to our business goals.Unique ChallengesIn this role, you will have the opportunity to:Realize innovative experiences through cryptocurrency, integrating features seamlessly into Mercari's existing financial services.Utilize Mercari's extensive customer base of over 23 million monthly users to provide cryptocurrency-related functionalities.Create new value exchange models using blockchain technology for services and digital content.QualificationsRequired Skills:Strong alignment with Mercari Group's mission and values.Minimum of 3 years of product management experience with corporate products.Experience in creating specification documents and requirements definitions.Preferred Skills:Experience managing large-scale consumer products.Background in software development as an engineer.Data analysis experience using SQL or similar tools.Professional experience using English.Experience utilizing AI in projects.
Join Mercoin as a Risk Management Specialist to contribute to our innovative financial services. This role requires proficiency in Japanese, as the job description is available in Japanese only.About the Mercoin TeamThe Risk Management team at Mercoin is dedicated to managing specific risks associated with our cryptocurrency-related services while implementing enterprise-wide risk management strategies. As we introduce groundbreaking financial services, we seek individuals who can think flexibly and adapt traditional risk management techniques to our unique environment. Let's collaborate to challenge norms and build innovative risk management solutions.Key ResponsibilitiesDevelop and propose risk management policies.Establish risk management frameworks and facilitate meetings.Conduct risk assessments and coordinate with internal and external stakeholders to devise response strategies.Monitor risk mitigation measures.Engage in various tasks related to risk management.Unique ChallengesSupport the rapid launch of new services under appropriate risk controls.Continuously update the risk management framework to keep pace with business evolution.Leverage traditional risk management knowledge while pioneering new methodologies for diverse business areas at Mercoin.QualificationsRequired Experience and Skills:Alignment with the mission and values of Mercari Group.Over 5 years of experience in risk management across various sectors.A willingness to innovate beyond traditional financial institution methods.Preferred Experience and Skills:Experience in enterprise risk management (ERM).Risk management experience in fintech or startups.Consulting or advisory experience in risk management from consulting firms or audit companies.Language Proficiency:Japanese: Proficient (CEFR - C1) - RequiredEnglish: Independent (CEFR - B2) - PreferredFor more insights into our mission and values, visit our mission page.
This role requires proficiency in the Japanese language. Please note that the job description is available only in Japanese.Backend Software Engineer - MerpayEmployment Type: Full-timeWork Style: Flexible working hours (No core time, no flexible time)Location: RoppongiFor more details, please visit our career site.About the Mercari GroupCirculating value to expand everyone’s potentialFounded in 2013 by Shintaro Yamada after a journey around the world, Mercari was born from the desire to create a more abundant society amid limited global resources. We believe that by circulating all forms of value, not just physical goods and money, we can provide everyone with the opportunity to realize their ambitions and contribute to society.Through the power of technology, we aim to connect people globally and create a world where everyone can unleash their potential. For more on our guiding principles, please refer to the Mercari Culture Document.Team MissionMercari Engineering Principles: These principles form the foundation of belief and action within the Mercari engineering organization, complementing our Mission, Values, and Culture from an engineering perspective. They define the ideal state we aim to achieve in order to ultimately fulfill Mercari's mission.Passion for the ProductGrow TogetherSolve Through MechanismsCollaborate OpenlyFor more information about our engineering culture, please visit here.Work Style and Team CultureThis recruitment will focus on hiring for the Merpay's Balance Team and the MerCard/Code Payment/Online Payment Team. Depending on your preferences and experience, we will determine which team you will be assigned to.The engineering team at Merpay comprises highly specialized members from the Mercari Group, organized into teams by business domain. We engage in architecture discussions on Slack, exchange Pull Requests on GitHub, and foster an open culture of knowledge sharing. Weekly study sessions like Go Friday allow all members to enhance their skills together, even those without prior experience in developing web applications with Go.For more on Mercari's mission and values, please refer to this link.ResponsibilitiesDevelopment of microservices and APIs using GoInterface design between microservices using Protocol Buffers and gRPCQuantitative and qualitative analysis of user behavior logs for measuring the effectiveness of initiatives and improving servicesArchitectural design based on application requirements, including middleware selectionPerformance tuning, monitoring, and alert response for microservicesDevelopment EnvironmentProgramming Language: GoInfrastructure: Google Cloud Platform (Compute Engine, Kubernetes Engine, Spanner, Cloud SQL, Storage, Dataflow, Pub/Sub, etc.)Configuration Management Tools: TerraformAnalytics Platform: BigQuery / Looker / Data StudioMonitoring: Datadog / PagerDuty / SentryCI/CD: SpinnakerKnowledge Tools: Confluence / NotionOthers: GitHub / SlackDevelopment Methodologies: Agile (Scrum, Kanban, etc.)
Join Our Team as a Backend Engineer (AI/LLM)Are you passionate about harnessing the power of artificial intelligence and large language models to create innovative solutions? At Mercari, we are looking for a skilled Backend Engineer to join our dynamic AI/LLM team within the Mercari Marketplace. Your expertise will help us design, develop, and maintain robust backend systems that drive our cutting-edge AI and machine learning applications.Your role will involve close collaboration with machine learning researchers, data scientists, and other stakeholders to deliver impactful user experiences. If you are eager to make a difference and contribute to a mission that empowers people through technology, we would love to hear from you!
Join Mercari as an Android Engineer for Mercoin, where your expertise will contribute to innovative cryptocurrency and blockchain services. This role requires proficiency in the Japanese language, as the job description is available in Japanese only.Position OverviewEmployment Type: Full-time or ContractWorking Style: Flexible hours (no core time)Location: Roppongi, Minato CityFor more details, please refer to our career site.About Mercari GroupAt Mercari, we believe in creating a richer society by promoting the circulation of value in various forms. Founded in 2013 by Shinjiro Yamada, Mercari was born from a vision to tackle global resource limitations. We connect people through technology, fostering an environment where everyone can realize their potential. To learn more about our culture and mission, visit the Mercari Culture Doc.Team MissionAs part of Mercoin, you will work on developing services related to cryptocurrencies and blockchain technology. Our goal is to simplify financial services, allowing users to receive payments in Bitcoin and access integrated financial solutions through a single wallet.ResponsibilitiesDesign and develop new features for the Mercoin platform.Collaborate with backend teams to implement API designs.Engage in team development with project managers, designers, and QA engineers.Improve CI environments and automated testing frameworks.Technological EnvironmentProgramming Language: KotlinDevelopment Environment: Android StudioBuild Tools: GradleCI/CD: GitHub ActionsAI Tools: Claude Code, Cursor, ChatGPT, Notion AI, NotebookLM, Google Gemini, etc.Other Tools: GitHub, Slack, Figma, JIRA, Confluence, Notion, TestRail, Firebase Test LabUnique ChallengesWith over 3 million users utilizing our Bitcoin trading service, your contributions will significantly impact the industry.
Position OverviewWe are seeking a dynamic Chief Operating Officer (COO) to lead our fintech initiatives at Merpay and Mercoin. This role is pivotal in strategizing and executing innovative business plans that will drive exceptional growth.About MercariFounded in 2013 by Shintaro Yamada, Mercari is dedicated to revolutionizing the way value is circulated, empowering individuals worldwide to realize their aspirations. Our marketplace app promotes a sustainable economy by facilitating the exchange of all types of value. We leverage technology to foster connections and opportunities across the globe.Team MissionAs the COO, you will spearhead the strategic direction of our fintech business, focusing on payments, credit, and cryptoassets. Your vision will drive our ambition for 10X growth, ensuring that our strategies align with the broader goals of the Mercari Group.Key ResponsibilitiesDevelop and implement business strategies for our payment and cryptoasset divisions.Identify growth opportunities and foster collaboration across teams to elevate business performance.
We are seeking a dedicated IT Risk & Security Specialist to join our Mercoin team within Mercari. This role is essential for enhancing our information security and system risk management efforts in the fintech sector. As a pivotal member of our organization, you will contribute to developing a robust system that fosters long-term trust with our customers.Your responsibilities will include collaborating with various departments to implement initiatives aimed at enhancing internal awareness, leading the formulation and execution of policies and processes, and ensuring compliance with industry standards.Join us at Mercari, where our mission is to create a richer society by circulating value in all its forms. Our innovative fintech solutions, including the popular Mercari app and Merpay payment service, are designed to empower individuals and contribute positively to society.Key Responsibilities:Develop and implement information security and system risk management strategies.Conduct risk assessments and establish mitigation measures.Design, document, and continuously improve security processes.Organize and conduct internal training on information security.Support various financial projects focusing on security and risk management.Lead incident management and response to security breaches.Oversee external vendor security management and ensure compliance.Facilitate audits and inspections related to information security.This position also offers unique challenges such as building an IT Risk Management framework utilizing AI technologies and enhancing our governance, risk, and compliance (GRC) posture from a managerial perspective.
Join Our Team as an iOS Software Engineer at Merpay!Are you passionate about building innovative financial solutions? At Merpay, we are seeking a dedicated iOS Software Engineer to drive the development of cutting-edge payment and finance services. With a focus on our mission of creating a seamless society through trust, you will collaborate with a dynamic team of product managers, designers, and backend engineers.As a Full-time employee, you will enjoy flexible work hours without core time requirements, allowing you to achieve a healthy work-life balance. Our office is situated in the vibrant area of Roppongi, Tokyo, a hub of creativity and technology.
Mercari, Inc. offers a Software Engineer Internship based in Minato City, Tokyo. Interns join a team of experienced engineers and contribute directly to projects that support the Mercari platform, which serves millions of users. Role overview Interns work closely with other engineers on real product features and improvements. The team environment encourages collaboration and practical learning, with opportunities to write and review code as part of daily tasks. What you will do Work with engineers to develop and enhance product features Participate in code writing and code reviews within the team Gain hands-on experience using software development tools and workflows Why Mercari Projects have a direct impact on a large and active user base The workplace encourages creativity and ongoing learning Opportunities to build technical and teamwork skills in a collaborative environment This internship requires working onsite in Minato City, Tokyo, Japan.
Intellectual Property Specialist - Merpay/MercoinEmployment Type: Full-timeWork Style: Flexible hours (No core time)Location: RoppongiFor more details, please check our career site.About the Mercari GroupCirculating all values to expand everyone's potential.Founded in 2013 by Shinjiro Yamada, Mercari arose from the challenge of creating a more prosperous society amidst limited global resources. We believe in creating opportunities for everyone to realize their aspirations by circulating all forms of value, not just physical goods and money.Through the power of technology, we aim to connect people worldwide and realize a world where everyone’s potential can be unleashed. For more on our guiding principles, visit our Mercari Culture Doc.Team MissionThe Fintech Legal Team is committed to advancing the intellectual property strategy of the Mercari Group, which includes the dual pillars of "Open & Defensive" and the AI-native approach "ChizAI-Native." We work collaboratively with stakeholders (Open) while maintaining robust defenses for our core assets (Defensive). Our efforts focus on enhancing IP operations and decision-making speed through AI, supporting business growth through IP activities.We welcome applications from those who resonate with our mission and values and who can actively promote "Open & Defensive" and "ChizAI-Native." For more details on our mission and values, please see here.Job ResponsibilitiesConducting research, discovery, filing, and securing intellectual property rights (patents, trademarks, designs, etc.)Supporting the Fintech business and new ventures within the Mercari GroupManaging disputes and negotiations related to intellectual property rightsPromoting the overall IP strategy within the Mercari GroupUnique ChallengesAs an IP specialist at Mercari, you will engage in a broad range of IP activities (patents, trademarks, designs, copyrights, contracts), enhancing your skill set.Experience the fast-paced nature of the business while handling IP tasks such as filings and clearances, gaining a sense of partnership with the business.Engage in the transition to AI-driven IP operations, allowing for experimentation and the development of new methodologies.QualificationsRequired Experience and SkillsA strong alignment with the mission, values, and themes of the Mercari Group and its companiesOver 3 years of experience in software patent prosecutionProactive in the AI-driven transformation of IP operationsPreferred Experience and SkillsPatent Attorney certificationExperience in trademark and copyright-related tasksLeadership experience in litigation or licensing negotiationsLanguage SkillsJapanese: Proficient (CEFR - C1)English: Independent (CEFR - B2) preferredFor further details on CEFR, please visit here.Learn More About the Mercari GroupCareer Site: https://careers.mercari.com/
Internship|Remote|Remote — Minato City, Tokyo, Japan
Join Our Innovative TeamAt Mercari, we are continuously evolving, and we invite you to be part of this dynamic journey. As a Software Engineer Intern, you'll have the unique opportunity to contribute to our innovative projects and help shape the future of our organization. This is more than just an internship; it's a stepping stone to becoming a leader in the tech industry.Your RoleAs a Software Engineer Intern, you will work closely with experienced professionals in a collaborative environment. You'll engage in problem-solving, design, and implementation of software solutions that directly impact our user experience.Who We Are Looking ForWe welcome applications from individuals graduating in October 2027 or April 2028.This is an intern position; applicants must be eligible to work in Japan. Visa support and accommodation will be provided for overseas candidates.Applicants should be available for more than 20 hours per week, with a recommended internship duration of 2-3 months. Please discuss any preferences for a different duration with our recruiters.Office location: Remote or at our Roppongi office in Japan.Application Deadline: June 15, 2026, 23:59 (JST)
Join our dynamic team as an IT Risk & Security Specialist at Mercoin, where you will play a pivotal role in safeguarding our fintech operations. This position demands proficiency in Japanese, as the job description is provided in Japanese only.About MercoinAt Mercari, we strive to create a sustainable society by enabling the circulation of values beyond physical goods and currency. Since our inception in 2013, we have believed in empowering individuals and contributing positively to society through innovative solutions.Our MissionWe are on a mission to connect people globally through technology, fostering an environment where everyone can unlock their potential.Team ObjectivesEstablish a robust information security and system risk management framework to earn long-term trust from our customers.Implement security governance that supports agile management, setting new standards in a rapidly evolving environment.Key ResponsibilitiesAs an IT Risk & Security Specialist, you will oversee information security and system risk management for Mercoin, contributing to the enhancement of governance and compliance across the entire group. Collaborate with various departments to develop and implement strategies aimed at increasing internal awareness and lead the formulation and execution of policies and processes.Formulate strategies and establish frameworks for information security and system risk management.Conduct risk assessments and implement mitigation strategies while continuously monitoring system risks.Design and improve processes related to information security and system risk management.Plan and execute internal education and awareness initiatives regarding information security.Support various financial projects from an information security and system risk management perspective.Manage incidents, analyze and report system failures, and lead responses to security incidents.Ensure rigorous security management for external vendors and services.Facilitate audits and inspections related to information security smoothly.Additionally, you may take on compliance-related tasks as needed.Unique ChallengesBuild a new IT risk management framework leveraging AI and LLM technologies.Strengthen GRC management from a business perspective across the fintech sector and the broader Mercari group.Collaborate with a talented engineering team to establish next-generation management standards in a rapidly changing environment.QualificationsAlignment with Mercari’s mission and values.Experience in information security and system risk management, preferably in the fintech sector.
Are you a passionate iOS Software Engineer looking to make a significant impact in the world of payment and financial services? Join Merpay, a pioneering team within Mercari, where you will contribute to developing innovative financial products that enhance user experiences.Your RoleAs part of our dynamic team, you will design and develop new features for our credit services, collaborating closely with product managers, designers, and backend engineers.Utilizing your expertise in Swift, you will work on developing functionalities related to personal credit services and smart money solutions.In addition to feature development, you will play a key role in improving code quality, conducting thorough testing, and enhancing our development processes.We support cross-functional growth; you will have the opportunity to explore roles beyond iOS such as Android, Web, or backend development.Embrace AI technologies responsibly while maintaining our commitment to security and user trust.We encourage sharing your knowledge and expertise through participation in conferences and writing for our engineering blog.
Join Mercari as the AML Risk & Compliance Team Manager for Merpay / Mercoin, where your expertise will directly contribute to our mission of promoting sustainable business growth through effective AML/CFT practices. This role requires proficiency in Japanese and offers a flexible work environment without core hours.About Mercari GroupFounded in 2013 by Shinjiro Yamada after recognizing the importance of resource sustainability while traveling globally, Mercari aims to circulate all forms of value, empowering individuals and contributing to society. We leverage technology to connect people and create an environment where everyone can realize their potential.Team MissionWe are seeking a leader to manage the AML/CFT and economic sanctions compliance for our payment services, including Merpay and Mercoin. Your leadership will ensure that our operations are secure and compliant, safeguarding against money laundering and terrorist financing risks in our diverse business landscape.Key ResponsibilitiesLead the AML/CFT strategy and execute compliance measures.Analyze suspicious transactions and develop countermeasures.Summarize reporting for executive management.Establish policies to mitigate risks from organized crime.Define customer due diligence (CDD) and Know Your Customer (KYC) standards.Develop system requirements for AML/CFT-related operations.Adapt to regulatory changes and respond to inquiries from authorities.Unique ChallengesUtilize cutting-edge technology in the fintech industry to address money laundering risks creatively.Collaborate with management to establish AML/CFT frameworks for new business ventures.Manage risks across various services impacting over 23 million users.Engage with other companies and the cashless industry to share insights and initiatives.
