[Core] Data Analytics Engineer (FinOps)

About the Role Toss is looking for a Data Analytics Engineer focused on Financial Operations (FinOps) in Seoul. This position centers on analyzing financial data and supporting decisions that improve financial processes. The work directly impacts how the company manages and optimizes its financial performance. What You Will Do Analyze financial data to suppo…

About the Data Reliability Team The Data Reliability Team at Toss, part of the Data Platform Tribe, focuses on monitoring the company’s data assets end-to-end. The team identifies critical data points, manages data quality checks, and oversees the full data lifecycle. Formed to address the lack of visibility into how backend and frontend code deployments affect data, features, models, and serving processes, the team plays a key role in maintaining trust in Toss’s data infrastructure. What You Will Do Design and build pipelines to generate features used across the organization, including inputs for machine learning models, Elasticsearch indices, Redis, and API responses. Develop and operate systems for feature quality management, such as retention policies and data quality maintenance. Directly develop common features that serve multiple teams within Toss. Review existing metadata for features and models, and work to fill any gaps in metadata coverage. Create processes to detect ad-hoc features and promote them to Verified Features status. Systematically manage data quality and assess the impact of data as it flows into online serving and machine learning systems. Who We’re Looking For Experience in feature engineering or in designing and building a feature store. Proven ability to design and build large-scale data pipelines using tools such as Spark, Flink, or Kafka. Familiarity with data lineage or metadata management systems is a plus. Experience building or operating data quality monitoring systems is also valued. Application Tips If you have designed or operated a feature store, please describe its structure and the challenges it addressed in your application. Include examples of how you have systematically resolved data quality issues. Hiring Process Application Job Interview Cultural Fit Interview Reference Check Compensation Negotiation Final Acceptance and Onboarding Why Join Toss as a Data Analytics Engineer This role offers the chance to set the standard for organization-wide features at Toss. Help design processes and management systems, and lead the development and operation of shared data infrastructure that supports the company’s growth. Location Seoul

Coupang seeks a Senior Data Analyst to join the Eats Analytics team in Seoul. This position centers on using data to inform decisions that shape the Coupang Eats customer experience. Role overview The Senior Data Analyst will work closely with teams developing new solutions for Coupang Eats. Analysis and insights from this role help guide improvements and respond to evolving user needs. What you will do Analyze data to support decisions that enhance the Coupang Eats customer journey Collaborate with teams to develop and refine solutions based on user data Monitor and interpret trends to help teams adapt to changing customer requirements Location This role is based in Seoul, South Korea.

Join Our Dynamic TeamThe Data Engineer (AI) position is part of the AI Data Platform Team at Toss Securities.The AI Data Platform Team comprises Data Engineers, Machine Learning Engineers, Server Engineers, and Product Operation Managers, fostering collaboration across various roles.Our mission is to develop a unique data moat for Toss Securities through the integration of diverse securities domain data and AI technologies, providing essential insights for investors.We utilize external LLMs and conduct training and evaluation of our internally developed models while leveraging various data platform technologies.Your ResponsibilitiesProactively identify and lead projects to solve business challenges at Toss Securities, overseeing the entire process from data architecture design to development and operation.Build and manage a securities data platform that integrates, processes, and serves global market data.Establish and maintain a knowledge graph platform for real-time domain data.Create and operate data pipelines that underpin AI service products.Develop and manage a feature store for personalized recommendation services in real-time.Ensure data integrity by designing, developing, and operating data quality verification and monitoring systems.We Seek Candidates WhoHave over 5 years of experience in data engineering.Can comprehend requirements and analyze technical trade-offs to determine the optimal data architecture in a given environment.Possess a solid understanding and experience in large-scale distributed processing and data platforms.Have experience sharing knowledge with peers and junior engineers, contributing to the technical growth of the entire team.Are interested in leveraging AI beyond mere tools, understanding its principles to innovate engineering productivity.Can coordinate with colleagues across various functions and provide constructive feedback.Are eager to take on new challenges and proactively learn and grow.Preferred ExperiencesExperience with Kafka-based stream processing and large-scale distributed data processing (Hadoop/ClickHouse/ElasticSearch).Experience building and operating data pipelines using Airflow, Docker, and Kubernetes.Experience in monitoring and managing data integrity and quality.Stay up-to-date with the latest trends in AI/data technologies and have an interest in automation and productivity enhancement.

Join Our Team!The Data Engineer (DataOps) at Toss Securities is part of the Data Infra Team within the Data Division.The Data Infra Team manages a big data infrastructure based on the Hadoop ecosystem and operates a log/search platform (Elasticsearch). We provide technical support for Kubernetes, which is widely used for data acquisition and various data operations. Additionally, we are developing a data analysis platform aimed at enhancing the company's data literacy. Curious About the Data Division?The Toss Securities Data Division strives to become the world's leading securities firm in data management by contributing to data technology, services, and data-driven decision making.A diverse range of data professionals collaborate closely and enjoy their work.We regularly host Tech Weekly sessions to share expertise. If you are interested and willing, you can learn from various roles and their methodologies. Your Responsibilities Include:Operating and Improving a Stable Log PlatformThe log platform (Elasticsearch) at Toss Securities stores logs generated from various services, making it a key tool for securities service operations.You will innovate to ensure real-time data acquisition and fast search capabilities, handling millions of records per second.Managing the Toss Securities Search PlatformWe utilize an Elasticsearch-based search platform to provide a variety of search services for stocks, news, and content.You will collaborate with search engineers to create an environment for accurate and rapid searches without delays.Operating and Supporting Data KubernetesVarious engineers (Data Engineers, ML Engineers, DW Engineers, Search Engineers) in the Data Division use dedicated data Kubernetes for data acquisition, serving, and internal operations.The Data Engineer (DataOps) will address issues arising from the Data Kubernetes infrastructure and continuously develop the system from a long-term perspective.You will also analyze the experiences of data engineers, focusing on process development, operation, and enhancement tasks. We Are Looking For Candidates Who:Have over 5 years of experience as a Data Engineer.Have experience using or operating search engines like Elasticsearch or Solr.Have worked with or managed distributed databases.Have experience operating Kubernetes + Istio-based infrastructure.Understand or have experience with the Hadoop ecosystem.Have built and managed metric systems in large-scale distributed environments.Have experience operating container orchestration services and CI/CD servers.Can automate engineering experiences within their current organization and improve processes or tools.Possess the ability to eliminate poor funnels in engineering experiences, as our organization focuses on collaborative achievement rather than direct supervision. Technologies We Use at Toss Securities:Python, Kotlin, Java, Spring Boot, Spring Cloud ConfigElasticsearch stack, Opensearch stack, Vector

Join Our Dynamic TeamAs a Data Engineer at Toss, you will be part of the Data Platform team.The Data Platform team operates within the Data Division, supporting and managing the data and platforms necessary for all Toss services.Our team comprises members with 2 to 18 years of experience from diverse backgrounds, including portals, banking, gaming, and startups.We encourage team members to pursue various interests and collaborate freely on skills and knowledge sharing.Your ResponsibilitiesDevelop and maintain stable and efficient data pipelines (ingestion, loading, streaming).Contribute to data-driven Toss services through real-time distributed processing of large datasets.Create and manage tools to ensure a reliable and efficient data experimentation and analysis environment for your colleagues.Develop various data service applications for data analysis and platform operation.Who You AreYou have experience in developing data pipelines for large-scale data processing (collection, processing, analysis).You are familiar with large-scale distributed systems (Hadoop, HBase, Kafka, Spark, Flink, etc.).You possess software development skills for data application development (Java, Scala, Python, etc.).You have intermediate or advanced programming skills (web/client/server programming).Experience in developing services related to recommendations/advertising/machine learning is a plus.Please Highlight These Experiences in Your ResumeDetail the projects you worked on, the technologies you used, and how you solved challenges, rather than just listing languages or frameworks.Experience using platforms similar to Toss is beneficial, but we prioritize growth potential and problem-solving abilities over specific technologies.Include any experience resolving critical failures while operating platforms or optimizing for performance and resource usage.Share experiences where you identified and resolved bugs in open-source software or contributed enhancements.Your Journey to Joining TossApplication submission > Technical interview > Cultural fit interview > Reference check > Compensation discussion > Final offer

About the Team You Will Join The Data Engineer (Search) at Toss Securities is part of the AI Tribe within the AI Intelligence Silo. This Silo is a collaborative team consisting of Data Engineers, Machine Learning Engineers, Server Engineers, Frontend Engineers, Product Owners, and Product Designers, all working towards creating AI-driven information services leveraging securities domain data. Our focus is not just on presenting information but on rapidly experimenting with how to process and present data in a way that assists investors effectively. Search acts as the primary entry point connecting various securities data and AI services, with the Data Engineer (Search) being responsible for search/indexing functionalities that can be utilized across AI-based data services. The role centers around designing and operating the data and indexing aspects that constitute our search services, concentrating on stably designing and managing the data flow and infrastructure for search indexing rather than just enhancing algorithms or ranking models as seen in larger portals or e-commerce. Key Responsibilities Design and manage the indexing pipeline for Toss Securities search services, including stocks, autocomplete, news, and community features. Architect and reliably operate real-time/big data pipelines for search indexing. Gain insights into Elasticsearch-based search indexes and enhance the indexing structure and performance from a data perspective. Collaborate on data integrity management and re-indexing strategies to ensure stable data delivery for search. Gradually expand your responsibilities into areas beyond search, such as Graph search and ingestion of new data sources. Who We Are Looking For A candidate with over 3 years of experience in Data Engineering. Strong programming skills are preferred. Experience in designing or operating real-time or batch-based data pipelines is a plus. Experience in collecting and processing diverse data sources for service utilization is beneficial. Familiarity with big data processing platforms such as Spark, Hadoop, Impala is an advantage. A passion and curiosity for learning new domains and technologies are highly valued. A preference for collaborative environments where feedback and growth are encouraged is ideal. Additional Preferred Experience Experience using or managing search service infrastructures like Elasticsearch, Lucene, or Solr is advantageous. A genuine interest or experience in search domains such as search engines, recommendations, or ranking systems is a plus. Resume Tips Please detail your experience in designing/developing/operating data pipelines, ETL, streaming, etc. Highlight your role in projects and what you learned and improved through those experiences. If you have experience with search or Elasticsearch, even on a smaller scale, please describe the problems you solved. Your Journey to Joining Toss Securities Application submission > Job interview > Cultural fit interview > Reference check > Compensation discussion > Final acceptance and onboarding

ABOUT USXsolla is a pioneering global commerce company that empowers game developers with a comprehensive suite of tools and services designed to tackle the unique challenges of the video game industry. From independent studios to AAA publishers, Xsolla partners with game developers to facilitate funding, distribution, marketing, and monetization strategies. With a steadfast belief in the transformative power of video games, our mission is to connect opportunities and continually provide new resources for creators. Headquartered in Los Angeles, California, Xsolla has served as the merchant of record for over 1,500 game developers, helping them expand their audiences and enhance their business potential. We offer innovative pathways to profitability, equipping developers with the necessary resources to thrive in the gaming landscape.For more information, visit xsolla.com.As the Director of Developer Experience, you will play a pivotal role in Xsolla's Developer Relations team, leading regional developer evangelists, spearheading impactful lighthouse integration projects, and cultivating deep, meaningful relationships with the game development community. This position requires a blend of technical acumen, community engagement, and leadership to ensure that Xsolla consistently delivers exceptional experiences for developers at every interaction.You will set the standard by actively engaging with developers at conferences, meetups, and online forums, while mentoring your team to develop outstanding developer content, integrations, and advocacy initiatives.

Join CLO Virtual Fashion, a pioneer in the realm of digital fashion, where we blend cutting-edge 3D garment simulation algorithms to provide comprehensive services ranging from concept development to design, manufacturing, marketing, fitting, and styling.Founded in 2009, we are committed to creating a new ecosystem for digital fashion. Our innovative platforms, including CLO, Marvelous Designer, and Jinny, along with CLO-SET and CONNECT, enhance the garment creation journey, fostering efficient and sustainable workflows. Our solutions ensure seamless interaction between physical and digital clothing within the CLO ecosystem.CLO Virtual Fashion is leading the global digital fashion market with 14 offices across 12 countries, including Asia, North America, Europe, and South America, continuously expanding our reach through numerous client partnerships worldwide.Position OverviewThis role transcends mere data analysis; you will define key issues for our Product and Business, steering the direction of growth through experimentation. We seek a proactive individual who can not only create dashboards but also ensure that metrics translate into actionable insights and decisions.The Data Analyst will lead data processing and analysis, enabling users to effectively utilize our products and ultimately enhancing the user lifecycle with CLO. You will manage various data generated from our main products (CLO, Marvelous Designer, CLO-SET, CONNECT) and facilitate effective decision-making by processing and organizing data to support seamless communication within the organization. Additionally, you will establish hypotheses, design logical structures for data extraction and analysis to derive implications and insights, experiencing the entire process from A to Z.Hiring Process[Document Review] → [Assignment Assessment] → [1st Interview] → [2nd Interview (+Reference Check)] → [Compensation Negotiation] → [Final Acceptance]* The 1st interview includes an English interview and SQL Live test.* Reference checks may be requested during the scheduling of the 2nd interview.

About the Team You'll Join The Business Data Analyst will be part of the Corporate Initiatives Team within the Strategy Tribe of Toss Bank's Strategy Division. This team plays a critical role in management planning by deriving insights for corporate-level decision-making and discovering new initiatives. We develop, measure, and analyze key performance indicators (KPIs) across the organization to manage overall performance. Your role will involve collaborating with various teams to facilitate data-driven decision-making, interpreting the current state of Toss Bank, and envisioning its future. Your Responsibilities Will Include Building data foundations for key management decisions and supporting process establishment. Structuring management information to provide accurate and timely insights to Toss Bank team members. Designing and enhancing frameworks for establishing enterprise OKRs, analyzing contributions of product organizations, and conducting cost-benefit analyses to support critical decision-making. Structuring and automating performance management systems. Creating data foundations that enhance not only short-term performance but also long-term growth and the value of Toss Bank as a platform, ensuring sustainable growth. Building processes and frameworks to connect user data with financial and operational data for holistic analysis. Supporting team members in understanding how their work impacts overall metrics through a common language and framework for data-driven decision-making. We're Looking For Someone Who Can independently carry out the entire process of data analysis from data cleansing to problem definition and insights generation. Has over 5 years of practical experience in data analysis using SQL. Experience with statistical analysis tools such as Python or R is a plus. Is proficient in at least one data visualization tool (Tableau, Redash, Power BI, Google Data Studio, etc.). Possesses strong communication skills to convey analytical results clearly. Has experience collaborating with teams focused on data analysis, strategic planning, management control, or FP&A from an enterprise perspective. Can quickly grasp the company's current situation, identify issues, and propose new alternatives and strategies. Resume Submission Guidelines There are no specific formats or items required. Please present your experiences in a way that best showcases your qualifications. It’s beneficial if your resume outlines the problem definition, hypothesis setting, experimental design and validation, and outcomes of projects you've undertaken. If you have experience proposing new alternatives and strategies based on a solid understanding of the business, please include that. Journey to Joining Toss Bank Application submission > Pre-query test > Job interview > Cultural fit interview > Reference check > Salary negotiation > Final acceptance and onboarding.

# About the Team- The Data Mart Platform Team is dedicated to building a standardized Data Warehouse for various Toss products, aiming to prevent data silos and enhance overall data maturity across the organization.- Responsibilities include enhancing centralized DW quality management processes, standard monitoring, integrating product data with the enterprise data mart, designing efficient pipelines, and creating standardized marts.- **Interested in learning more about Toss's Data Organization?** [→ *Toss Data Division Wiki*](https://recruit-data-division.oopy.io/) # Responsibilities- After completing an onboarding process to familiarize yourself with Toss's DW standards, you will work as part of the Data Mart Platform Team.- Maintain and manage an agile and manageable enterprise DW standard, taking responsibility for DW quality management from an enterprise perspective in collaboration with DAEs (Domain Analytics Engineers) from various product domains (development and execution of standard management monitoring).- Plan and execute systems and processes to enhance data reliability, improving table consistency, advancing DQ rules, and establishing health check metrics.- Develop enterprise-level marts, managing the integration of standard marts from different domains and ensuring efficient data pipeline improvements.- Identify and execute tasks to enhance data discoverability across the organization.- Develop a platform to measure data maturity across various Toss domains and initiate projects to enhance the productivity of DAEs.- The data development environment is based on Hadoop, Airflow, Python, and SQL (Impala). # Desired Qualifications- Understanding of database normalization and the fundamental characteristics of Data Warehouses (Subject-Oriented, Integrated, Non-Volatile, Time-Variant).- Ability to clearly define key concepts as a DW data modeler and propose efficient data structures based on diverse data perspectives.- High-level understanding of DW standard management and the capability to propose and lead improvement initiatives at the enterprise level.- Strong comprehension of data governance aspects, including data quality and compliance, with the ability to suggest actionable plans.- Proficient in SQL, capable of writing efficient and readable queries.- Basic Python skills (enough to work with Airflow) are acceptable, but understanding modules and PySpark code written by others is preferred.- Experience with large-scale data processing and designing metrics from an AARRR perspective is a plus. # Application Tips- Please specify any relevant experience with DW construction projects and mart design, detailing your contributions.- Mention specific challenges you have addressed regarding data maturity.- Outline your contributions and lessons learned while solving data-related issues. # Joining Toss - Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Discussion > Final Acceptance and Onboarding # A Note to Future Colleagues > "Our team strives for better service every day." - I was drawn to the thrilling risks associated with financial data and saw that my growth could contribute to the company's success, which is why I joined Toss. - The most stressful aspect of my previous company was being led by predetermined objectives, but Toss offers more autonomy than I expected, along with a dedicated and ambitious team focusing on "better service every day."

회사 소개Coupang Logistics Services (CLS)는 택배사업, 화물운송, 물류창고 등 종합 물류 서비스를 제공하는 쿠팡의 물류 전문 계열사입니다. CLS는 고객에게 최적의 배송 서비스를 제공하기 위해 혁신적인 분류작업 인력과 전문 배송직원을 운영하며, 쿠팡의 로켓배송을 기반으로 한 미래 물류의 혁신을 선도하고 있습니다. 업무 내용1. 차량 데이터 정리 및 기본 분석 (Data Engineering Basics)차량 주행 및 정비 데이터를 엑셀 또는 Python 스크립트를 활용하여 정리 및 표준화합니다.데이터 품질을 검토하고 오류 및 이상값을 식별하는 기본 QA 작업을 수행합니다.단순 반복 작업을 자동화할 수 있는 기초 로직을 설계합니다.2. AI 기반 업무 효율화 지원 (Smart Work)운영 지표를 자동으로 산출할 수 있는 기본 구조를 설계합니다.LLM(ChatGPT 등) 또는 No-code/Low-code 툴을 사용하여 단순 업무의 자동화를 지원합니다.AI 도구를 활용한 리포트 자동 생성 및 텍스트 요약 등을 통해 업무 효율성을 증대합니다.3. 데이터 기반 운영 인사이트 도출정비 네트워크의 운영 데이터를 분석하여 개선 포인트를 제안합니다.차량 교체 시점 및 비용 패턴에 대한 예측 분석을 지원합니다.데이터 기반 의사결정을 돕는 리포트를 작성합니다.4. 대시보드 기초 구축 및 운영 지원Tableau, Power BI 등의 도구를 활용하여 기본 대시보드를 제작합니다.운영팀이 쉽게 활용할 수 있도록 데이터 뷰를 정리하고 업데이트합니다.간단한 인터랙티브 리포트를 구성합니다.

We are seeking a talented Server Developer with a focus on Blockchain technology to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining server-side applications that leverage blockchain technology. Your expertise will contribute to innovative solutions that enhance our platform's capabilities and user experience.

Join our innovative team at Toss as a Server Developer (여신) where you will play a crucial role in designing and optimizing our server-side systems. We are looking for passionate developers who thrive in a fast-paced environment and are eager to tackle complex challenges. Your expertise will directly contribute to enhancing our platform's performance and scalability.

About the Domain You'll Join Toss is composed of several domains that operate as independent businesses, including Growth, Foundation, Commerce, Pay, Financial Marketplace, and Ads & Benefit. The Growth domain is designed to drive an increase in Toss app users and generate higher revenue per user. To propel Toss's growth, it is essential to not only attract new users but also encourage existing users to utilize more services within the app. You will be responsible for analyzing and improving existing services while also creating new services that contribute to user growth. Your Responsibilities Design and develop the product server utilized by numerous Toss customers. Establish valid hypotheses and validate them through experiments, utilizing data insights to progressively enhance product-market fit. Leverage trendy technologies to ensure stable service operation, while listening to user feedback to quickly and flexibly resolve issues. What You Should Note This position is aimed at individuals interested in creating new services that drive growth. While it shares similarities with the existing Server Developer (Product) role, it will specifically place you in the Growth domain. If you wish to have flexibility in your placement based on your strengths, consider applying for the [Server Developer (Product)](https://toss.im/career/job-detail?job_id=4071141003) position. Please note that Toss is not hiring individuals eligible for military service exceptions (industrial personnel, research personnel) at this time. Who We Are Looking For Individuals with experience in designing and operating high-availability scalable systems. Developers who have experience in creating systems that handle large-scale real-time traffic. Those who have encountered and resolved issues during system outages. Individuals who are passionate about their services and approach their work with a sense of ownership. Collaborative team players who are eager to share insights and ideas gained from service development, constantly seeking technical challenges. Technologies We Use at Toss Kotlin, Spring MySQL, MongoDB, Hadoop, Redis, Kafka, Elasticsearch The Journey to Join Toss Application submission > Functional interview > Cultural fit interview > Reference check > Offer negotiation > Final acceptance and onboarding A Note for Future Colleagues "Let's achieve explosive growth together in the Growth Domain!" The Growth domain is the ideal environment for those who love products and believe in the importance of analysis. You'll have plenty of opportunities to advance your career alongside outstanding makers. Creating value through deep analysis leads to daily dynamism and excitement in the Growth domain, with metrics like MAU and ARPU providing immediate feedback on your impact.

Role overview Coupang Eats seeks a Senior Data Analyst to guide strategic decisions and enhance the user experience for its food delivery platform. This role is based in Seoul, South Korea. What you will do Examine complex datasets tied to food delivery operations and customer behavior Generate insights that shape business strategy and drive product improvements Collaborate with cross-functional teams to spot opportunities and address challenges Share findings and ideas that help boost operational efficiency and customer satisfaction Impact Data-driven recommendations from this position influence daily operations and contribute to long-term improvements at Coupang Eats.

About the Team You Will Join The Frontend Developer position at Toss is part of both a silo and the frontend chapter in a matrix structure. At Toss, products and services are developed within silo teams consisting of 6-8 professionals, including Product Owners, Designers, Server Developers, Frontend Developers, and Data Analysts, allowing for a startup-like autonomy. The frontend chapter collaborates closely like a single team! We conduct weekly chapter meetings to share new technology topics and development insights through 'Tech Talks', as well as engage in library development and code reviews for UI components and asynchronous processes. This year, the frontend chapter aims to scale its resources to ensure Toss's increasingly demanding business operations run smoothly. Your Responsibilities You will play a key role in identifying the market potential of Toss products and nurturing them into mature services. Toss implements various web pages within its app, collaborating with partners to continuously update services much like a native app. We are enhancing our frontend development environment to ensure web services can be built and deployed in just one minute, maximizing user experience. The Ideal Candidate Proficiency in SPA frameworks like React, Vue, or Angular is preferred. We seek individuals who can proactively identify problems and propose solutions rather than merely executing assigned tasks. Experience with static type analysis in JavaScript using TypeScript or Flow is a plus. Resume Tips Instead of simply listing experiences, please describe your impact and learning points from your past roles. We value candidates who attempt to solve problems independently as we rapidly iterate on product completeness based on customer feedback. If you have experience with server-side rendering (SSR) or web app development within mobile apps, please highlight this. Detail any experience you have in gradually migrating existing source code to a new codebase. For military personnel, please include detailed information regarding your service status in your resume, as industrial personnel can transition and research personnel can change roles. Technologies Used at Toss Core: React, TypeScript, Next.js State Management: React-Query, Recoil Styling: Emotion Package Managers: Yarn Berry, PNPM Build Tools: Webpack, ESBuild, SWC, Babel

Introducing Toss Income Toss Income is a newly launched subsidiary of the Toss community, focused on providing services related to 'income', the starting point of financial management. Our primary emphasis is on the taxation domain. Although tax services may not be daily necessities, they are an integral part of financial life that everyone encounters. We strive to alleviate the difficulties individuals face in managing their taxes. Just as Toss has revolutionized the financial landscape with innovative services, Toss Income aims to deliver new value through offerings such as 'Finding Hidden Refunds'. As one of the earliest members of Toss Income, you will have the opportunity to help shape the team and contribute to our growth. Your Responsibilities You will play a key role in identifying market opportunities for Toss Income's products and driving them towards maturity. Our applications feature a variety of web pages that are continuously updated in collaboration with partner companies, ensuring a native app-like experience. We are committed to enhancing the frontend development environment, enabling the build and deployment of frontend web services within just one minute to ensure the best user experience. We Are Looking For Proficiency in SPA frameworks like React, Vue, or Angular is highly desirable. We seek individuals who can proactively identify problems, analyze them, and propose effective solutions, rather than simply executing assigned tasks. Experience with static type checking in JavaScript using TypeScript or Flow is a plus. Resume Writing Tips Rather than listing your experiences, describe the impact and learning points from your past roles. As we prioritize customer feedback in improving product quality, we look for candidates who demonstrate initiative in problem-solving. If you have experience in server-side rendering (SSR) or web app development within mobile apps, please include that in your resume. Highlight any experience transitioning existing code to a new codebase. For military service personnel, please detail your service status in your resume, as we accommodate transitions for industrial function personnel. Technologies We Use Core: React, TypeScript, Next.js State Management: React-Query, Recoil Styling: Emotion Package Managers: Yarn Berry, PNPM Build Tools: Webpack, ESBuild, SWC, Babel CI/CD: GitHub Actions

Join our dynamic team as a Data Engineer specializing in log platforms. In this role, you will work with cutting-edge technologies to design, build, and maintain robust data pipelines. Your expertise will help us manage and analyze extensive log data, enabling improved decision-making and operational efficiency.

All applicants will have the opportunity to take a coding test!Experience unique to Toss Payments."Discover new possibilities alongside colleagues who help reduce trial and error."Create products with a lifespan of over 20 years that impact various merchants utilizing Toss Payments.Engage in complex tasks that involve understanding the history of previous technologies to identify improvement strategies.All engineers work towards a common goal, collaborating across teams on specific problems and organically removing blockers during the solution process.Embrace challenges and try anything to overcome your limits and discover new potentials.About Toss Payments:- Toss Payments aims to provide all necessary solutions for businesses, from technology to operations, understanding the challenges and inefficiencies they face. We create products that offer consumers a simple and convenient service experience while ensuring merchants can focus solely on their business.- We operate under the principles of autonomy and responsibility, fostering a strong culture of mutual trust as we pursue our core goal of 'innovating the electronic payment market.' We are looking for colleagues who will help shape the future of the payment industry!What you'll be working on:- Develop scalable and flexible systems to easily implement the continuously increasing payment requests and diverse requirements.- Create systems capable of handling traffic surges, such as those during flash sales, without crashing.- Build settlement systems that can quickly and accurately compute numerous transactions with hundreds of requirements.- Develop new APIs to address business difficulties in a microservices architecture that allows for seamless and uninterrupted deployments.- Establish an ecosystem to support OpenAPI, connecting Toss Payments with client systems.Who can apply:- Individuals with less than 3 years of practical development experience.- Those with no restrictions on overseas travel.- Candidates available to join by June 2024.Technologies used at Toss Payments:- Java, Kotlin, Gradle- Spring MVC, Spring Webflux, Spring Batch, JPA, Spring Cloud Gateway, Spring Cloud Config, Netty- MySQL, Redis, ElasticSearch, Kafka, OracleThe joining process at Toss Payments:- Application submission > Coding test > Job interview > Cultural fit interview > Reference check > Negotiation of terms > Final acceptance and onboarding.- Application submission: April 15 (Monday) to April 24 (Wednesday) by 23:59.- Coding test: April 27 (Saturday) at 14:00 (90 minutes total).- The test will consist of 60 minutes of algorithm questions and 30 minutes of descriptive questions.- Subsequent hiring process: Only those who pass the coding test will be notified of individual schedules.- Onboarding: To take place in June.Coding test details:- The coding test will be sent to the registered email on April 27 (Saturday) at 2 PM.- Time limit: 90 minutes.- Submission deadline for the coding test: April 27 (Saturday) at 3:30 PM.- All applicants will have the opportunity to take the coding test.Frequently Asked Questions:Q. Can I apply if I have a past rejection?- There are no restrictions on applying for the Toss Payments Server Developer position for those with less than 3 years of experience. Feel free to apply even if you have been previously rejected.Q. Can industrial function personnel or specialized research personnel apply?- Currently, Toss Payments does not permit the hiring of personnel under military service exceptions, thus they cannot apply.Q. Can foreigners or those living abroad apply?- If you have received a work visa or have no issues obtaining one, you are eligible to apply.