Enterprise AI Security Engineer at Mercari - Tokyo

We are seeking a passionate Enterprise AI Security Engineer to join our dynamic team at Mercari. In this role, you will be at the forefront of securing our AI-driven initiatives, focusing on building robust security measures for our internal AI agent platforms and solutions. You will collaborate with the AI Taskforce, engineering, and IT teams to design and …

As a Security Management Specialist at Mercari, you will play a vital role in establishing and enhancing our company's security and compliance frameworks. Collaborating closely with the Governance, Risk, and Compliance (GRC) team, you'll be tasked with implementing new policies and processes to mitigate security risks and foster a culture of security awareness across the organization.In this dynamic position, you will lead initiatives aimed at automating governance processes, particularly through the innovative use of AI tools, to create an efficient and robust security assurance system.Key Responsibilities:Manage and execute the information security program to ensure compliance with security regulations.Design, document, and enhance processes related to information security through automation.Conduct security risk assessments for new services and features, and drive risk mitigation strategies.Collaborate with cross-functional teams as a subject matter expert on security risks and compliance.Establish and revise internal regulations related to information security.Plan and implement internal education and awareness initiatives on information security.Oversee security management related to third-party services and outsourcing.Respond to audits and inspections regarding information security.Ensure compliance with standards such as ISO/IEC 27001 and PCI DSS.Challenge yourself to automate security operations using AI and LLM tools, enhancing governance processes.Provide responses to inquiries related to information security.

Join Mercari as an IT Infrastructure Engineer and play a pivotal role in shaping the technological backbone of our operations. This position requires fluency in Japanese, as the job description is available in Japanese only.At Mercari, we believe in creating a world where all values can circulate, enhancing the possibilities for everyone. Founded in 2013, we aim to connect people through technology and expand opportunities for individuals and society alike.Your mission will involve designing, building, and managing our corporate IT infrastructure across various platforms and services. If you’re ready to take on unique challenges in a dynamic environment, we want to hear from you!

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 Engineering Manager for the Database Reliability Engineering (DBRE) team, where you will play a crucial role in building and maintaining a robust, scalable, and efficient database infrastructure integral to Mercari's operations. In this full-time position, you will oversee a team dedicated to ensuring reliable access to critical data through TiDB Cloud, supporting the platform relied on by millions of users daily.Your mission will include managing CoreDB, facilitating database migrations, and optimizing performance and costs across all database workloads. We foster a collaborative culture that values open communication, product passion, and continuous improvement.

Join Mercari as a Network & Infrastructure Engineer, where your proficiency in Japanese and technical expertise will be essential in enhancing our corporate IT infrastructure. This role offers a flexible working schedule with no core hours, allowing you to balance your professional and personal life effectively.About MercariFounded in 2013 by Shintaro Yamada, Mercari aims to create a more sustainable society by circulating values beyond just physical goods and money. We believe in empowering everyone to realize their potential while contributing positively to society. Our technology connects people across the globe, fostering an environment where possibilities can thrive.Team MissionAs part of the Corporate Engineering IT Division, our mission is to expand the potential of Mercari through technological strength and implementation capabilities. We manage and operate the corporate IT infrastructure across the Mercari Group.Key ResponsibilitiesDesign, build, and operate office networks and security systems.Architect, implement, and manage IaaS and virtual infrastructure using platforms like Google Cloud and Microsoft Azure.Establish and maintain SaaS solutions such as Okta and Google Workspace.Oversee the design, implementation, and management of endpoint devices and mobile systems.Unique ChallengesWorking with Mercari offers the opportunity to engage in diverse business lines, including e-commerce and fintech, and to participate in global projects. You will play a pivotal role in driving corporate IT solutions that consider various business needs, processes, regulations, and cultural differences.

Mercari is seeking a skilled Corporate IT Engineer to join our dynamic team in Minato City, Tokyo. This role requires proficiency in Japanese and offers an opportunity to contribute to our mission of enhancing societal value through technology.About the Corporate IT Engineer PositionEmployment Type: Full-timeWork Style: Flexible hours without core or flexible timeLocation: RoppongiFor detailed information, please visit our career site.About Mercari GroupFounded in 2013 by Shintaro Yamada, Mercari was born from a vision of creating a richer society amid limited global resources. We believe in circulating all types of value, from money to physical goods, to empower individuals to pursue their passions and contribute positively to society.Harnessing technology, we aim to connect people worldwide and realize a society where everyone can reach their potential. For insights into our organizational culture, refer to our Mercari Culture Doc.Team MissionThe IT Service Management (ITSM) team within the IT Division is dedicated to expanding Mercari's possibilities through technical proficiency and implementation. Our goal is to support all members in focusing on their tasks comfortably and securely by managing IT hardware and software across the company.Key ResponsibilitiesManage IT project initiatives related to Corporate IT, collaborating with internal and external teams.Oversee the IT Service Desk team, addressing inquiries and support requests from employees.Handle budget and contract management for IT assets, including hardware and software.Assist with contract and budget management for engineering tools utilized by the engineering organization.Unique ChallengesParticipate in the evolution of enterprise IT within a unique environment serving thousands of users, balancing cloud and SaaS solutions.Engage in the operational establishment of globally applicable IT foundations.Make significant contributions through management of IT services and assets across the entire organization.QualificationsMust resonate with the mission and values of the Mercari Group.Minimum of 3 years of experience in Corporate IT, including enterprise system implementation and IT support.Experience in coordinating with various internal departments or external partners.Strong documentation and presentation skills are a plus.Preferred SkillsExperience in contract and budget management for IT assets.Proficiency in English is a plus, especially in communication related to AI/LLM tools.

About the Role Mercari is looking for a Platform Engineer in Minato City, Tokyo. This role focuses on building and maintaining scalable systems to support a growing user base. The engineering team works together to improve the platform and deliver strong user experiences. What You Will Do Develop and maintain core platform systems Work with cross-functional teams to design efficient, sustainable solutions Support the platform's growth and reliability as user numbers increase

Join Mercari as an AI Research Scientist in our R4D department, where you will play a pivotal role in advancing innovative technologies. We are looking for passionate individuals with expertise in machine learning and computer vision, particularly in developing large language models (LLMs) that drive societal benefits.This full-time position offers flexible working hours with no core time, allowing you to manage your schedule effectively. You will be based in our vibrant Roppongi office, a hub for creativity and collaboration.

Mercari, Inc. welcomes Security Engineer Interns from the Class of 2028 to join the team in Minato City, Tokyo. This internship centers on hands-on security work, giving interns a chance to play a part in protecting Mercari’s digital platforms and assets. Role overview Interns will participate in real-world security projects and collaborate with seasoned security engineers. The experience is designed to build practical skills and introduce interns to the tools and challenges of modern security operations. What you will do Work closely with experienced security engineers Build practical skills using current security technologies Support initiatives that strengthen the security of Mercari’s platforms Location This internship is based in Minato City, Tokyo, Japan.

Mercari is seeking a Senior Analytics Engineer to support its e-commerce platform in Minato City, Tokyo. This position centers on using analytical skills to help shape business decisions and improve both user experience and internal operations. Role overview The Senior Analytics Engineer will work with data to uncover insights that inform product and business strategies. The goal is to provide clear, actionable recommendations that support Mercari’s mission and day-to-day needs. Key responsibilities Analyze complex datasets to identify trends and opportunities for improvement Collaborate with cross-functional teams to deliver data-driven solutions Support initiatives that enhance the platform’s user experience and operational efficiency Location This role is based in Minato City, Tokyo, Japan.

Are you ready to join a dynamic team at Mercari as a Marketplace Logistics Operations Analyst? We are looking for an analytical and detail-oriented professional who possesses strong Japanese language skills. This role is based in our headquarters in Roppongi, where you will contribute to optimizing our logistics operations, enhancing customer experiences, and driving business performance.About Mercari GroupEmpowering individuals and fostering a sustainable society through the circulation of value.Founded in 2013 by Shintaro Yamada, Mercari emerged from a vision to create a richer society despite limited global resources. We believe in enhancing opportunities for everyone by circulating all forms of value—beyond just physical goods and currency. Our mission is to harness technology to connect people worldwide and realize their full potential.Team MissionThe logistics team at Mercari is dedicated to eliminating friction in the movement of goods on our marketplace, ensuring a safe, reliable, and hassle-free experience for all our customers. We are building a logistics platform that supports Mercari's growth and fosters a circular economy by optimizing delivery, warehouse operations, and cross-border logistics.Key ResponsibilitiesData-driven Operations Management: Define key KPIs (demand, processing volume, delay, quality) and design monitoring decks. Conduct data analysis using SQL to identify bottlenecks and propose improvement hypotheses.Forecasting: Develop volume forecasting plans for cargo arriving at our warehouses and align with operations, business, and finance teams to enhance forecasting accuracy.Cost Management: Oversee cost management for warehouse operations, preparing data for monthly cost reviews.Join us in driving operational excellence and enhancing logistics efficiency at Mercari!

Join Us as a Principal Designer at MercariAre you a visionary designer ready to shape the future of online marketplaces? At Mercari, we strive to empower individuals by circulating all forms of value. As a Principal Designer, you will play a pivotal role in our mission to connect people worldwide and help them unleash their potential.About MercariFounded in 2013 by Shintaro Yamada, Mercari is more than just a marketplace app; it's a movement to help society thrive using our finite resources. We believe in creating opportunities for everyone to realize their dreams. Explore more about our culture and mission here.Our Design MissionOur design team embodies the strategy of circulating value through innovative product designs. You will be instrumental in crafting user experiences that enable individuals to obtain what they desire and achieve their aspirations.Your RoleInnovate our product offerings, balancing user needs with company growth and profitability.Contribute to a platform with approximately 48 million accounts and 23 million active users monthly.Maximize user engagement through tailored features like credit cards and cryptocurrency options.Collaborate across various Mercari services to create disruptive and engaging design solutions.

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.

This position requires proficiency in Japanese, as the job description is available only in Japanese.About Mercari GroupAt Mercari, we aim to circulate all forms of value to expand possibilities for everyone. Founded in 2013 by Shinjiro Yamada, Mercari was born out of a desire to create a richer society in light of limited global resources. We believe that by circulating various forms of value, we can provide options for people to pursue their passions and contribute positively to society.We leverage technology to connect people worldwide, realizing a world where everyone’s potential can flourish. For more details about our company culture, please refer to our Mercari Culture Document.Role of HR Business Partner at MercariThe HR Business Partner (HRBP) at Mercari is a crucial team that integrates deeply into our organization to strategize and execute various HR and organizational strategies aimed at driving business success.As we prepare for the next growth phase, HRBPs are tasked with identifying and solving HR and organizational challenges, closely collaborating with leaders and team members to commit to business growth.Key ResponsibilitiesImplement culture initiatives related to our mission and values.Collaborate with the recruitment team to develop and execute staffing plans for assigned organizations.Enhance engagement across teams and employees.Oversee employee career development and talent management.Manage employee relations and compliance.Coordinate with our Center of Excellence on HR planning and system design.Examples of initiatives include Strategic Workforce Planning, manager development programs, onboarding processes, Talent Reviews, and enhancing internal communications.This position offers a unique opportunity to tackle diverse HR challenges while contributing to the growth and transformation of the Mercari Group.

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.

Mid-Level Technology Recruiter – MercariEmployment Type: Full-timeWork Style: Flexible Work Hours (No Core Time, No Fixed Hours)Location: Roppongi, TokyoFor more details, please check our career page here.About Mercari GroupEnabling All Values to Circulate and Expand Human PotentialFounded in 2013 by Shintaro Yamada, Mercari was born out of the desire to create a more enriched society amidst limited global resources. We believe that by circulating various forms of value beyond just tangible goods and money, we can provide more opportunities for people to achieve their aspirations and contribute to society.Utilizing technology to connect people around the world, we aim to create a reality where everyone can realize their full potential. For more on our company ethos, visit the Mercari Culture Document.Team and MissionResponsible for recruitment across the Mercari Group, including new business initiatives, focusing on Engineering/Creative and Business/Corporate sectors. Each recruiter leads hiring for specific roles while leveraging their expertise across the organization.This role plays a crucial part in devising and executing recruitment strategies aimed at acquiring key engineering and creative talent that drive Mercari's growth.Learn more about our mission and values here.Key ResponsibilitiesPlan and execute recruitment activities for the Engineering/Creative fields based on business and organizational strategies.Collaborate with international offices and recruit global talent with a diverse perspective.Develop and implement bold recruitment strategies utilizing all available assets and diverse channels, including event planning and direct sourcing.Lead relationship building with internal and external partners to enhance the candidate experience.Manage the recruitment process from application screening, technical assessments, interviews, offer management, to onboarding support.Utilize tools such as Google Workspace, Notion, Slack, Workable (ATS), LinkedIn, and various AI tools for recruitment.Unique ChallengesContribute to global recruitment strategies targeting diverse and talented candidates beyond Japan.Engage in the cutting-edge strategy formulation for new job definitions and recruitment processes in alignment with the group's goal to become AI Native.Involve in hiring across various areas, including Creative roles such as designers and UX researchers, depending on organizational needs.Participate in technology conferences and event planning to enhance Mercari's branding and build networks within external communities.Engage in recruitment across various sectors including not just the Mercari marketplace but also in Fintech initiatives like Merpay and Melcoin, gaining insights into diverse business strategies and technology areas.QualificationsAlignment with Mercari Group's mission and values.Minimum of 3 years of experience in recruitment within corporate or staffing agency settings.Professional proficiency in both Japanese and English.Experience in project management and strategic planning within recruitment.A strong curiosity and desire to learn about the latest technologies, business practices, product innovations, and market trends.A proven ability to identify and define necessary talent based on organizational needs and successfully execute recruitment.

This role requires proficiency in the Japanese language. The job description is available in Japanese only.Product Designer - MerpayEmployment Type: Full-timeWork Arrangement: Flexible hours (no core time restrictions)Location: RoppongiFor detailed information, please visit our career site.About Mercari GroupOur mission is to circulate value and expand possibilities for everyone. Founded in 2013 by Shintaro Yamada, Mercari emerged from the challenges observed during his world travels. We believe in creating a richer society by circulating all forms of value, not just physical goods and money, allowing everyone to achieve their desires and contribute to society.Through the power of technology, we aim to connect people globally and realize a world where everyone's potential is unleashed. For more about our company philosophy, please refer to the Mercari Culture Doc.Team MissionWithin the Fintech Design Team, we leverage our extensive user base of over 23 million monthly users to enhance the trading of goods on our marketplace and strengthen the integration of payment and credit services in Fintech. We focus on expanding an ecosystem where various forms of value—including credit, NFTs, and cryptocurrency—can circulate.Our goal is to create a more sustainable society by facilitating the flow of diverse values through the Mercari ecosystem, helping individuals fulfill their desires while promoting responsible consumer behavior.ResponsibilitiesUnderstand the overall product structure of the marketplace, focusing on the payment service Merpay and the blockchain service Mercoin, to design user experiences that integrate new features.Design UX/UI for Merpay and Mercoin across iOS/Android applications and both desktop and mobile websites.Develop specifications for both consumer and business services.Utilize tools such as Figma, Photoshop, Illustrator (Adobe Creative Cloud), Slack, etc., in a Mac environment.Unique ChallengesMerpay and Mercoin function as components of the Mercari app, requiring a design approach that makes these services intuitive for users who engage with the Mercari marketplace.Unlike product listings with clear images, Merpay and Mercoin demand creative metaphorical representations, greatly enhancing the designer's impact.QualificationsAlignment with Mercari Group's mission and values.Experience in UX/UI design for services and applications.Basic knowledge of mobile UI design principles (iOS Human Interface Guidelines, Material Design, etc.).Ability to translate requirements into tangible designs and articulate them effectively.Skills in directing projects while considering business, engineering, and creative perspectives.Practical experience with Figma, prototyping tools, and Adobe Creative Cloud.Preferred ExperienceExperience in app development in collaboration with engineers, PMs, and designers.Experience in conceptualizing design ideas.Experience leading projects from early stages while understanding the UX lifecycle.Experience in design direction and quality control, both internally and externally.

This role requires proficiency in the Japanese language. The job description is available in Japanese only.Art Director / DesignerJoin our innovative Communication Design Team at Mercari, where we focus on shaping our corporate brand identity. We are seeking talented individuals to collaborate in creating a new corporate brand that reflects our mission of circulating value and expanding possibilities for everyone. As an Art Director/Designer, you will spearhead design and art direction initiatives that elevate Mercari's brand value through creative projects, including sustainability communications, diversity and inclusion efforts, and various internal and external touchpoints.

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.