Frontend Developer (Platform) at tosscareers | Seoul

Join our innovative team as a Frontend Developer where you will play a crucial role in developing and enhancing our platform. You will work closely with designers and backend developers to create seamless user experiences. Your expertise in frontend technologies will help us deliver high-quality software solutions that meet our users' needs.

Join our dynamic team at Tosscareers as a Node.js Developer! We are looking for innovative and passionate developers who thrive in a fast-paced environment and are eager to contribute to exciting projects. As a Node.js Developer, you will work with cutting-edge technologies and collaborate with cross-functional teams to deliver high-quality solutions.

About the Team You Will Join The iOS Developers at Toss operate within a matrix structure that encompasses various silos, teams, and the iOS chapter. At Toss, services and products are developed within siloed teams of 6-8 diverse professionals, fostering an environment of autonomy akin to that of a small startup. Apart from the silos, there is a dedicated team focused on creating shared modules within the iOS code, emphasizing deep technical considerations, accessibility for individuals with disabilities, and security aspects, ensuring the creation of services truly for the customer. The iOS chapter hosts an Engineering Day every Thursday, allowing members to step outside their silos to engage in active discussions about technology, share development expertise, and conduct code reviews together. Your Responsibilities Upon Joining Contribute to the development of Toss’s super app, which offers hundreds of services including money transfers, asset management, credit management, loans, insurance, authentication, and payments. Work on innovative financial services being developed by Toss, such as Toss Bank and Toss Securities. Continuously challenge yourself and conduct various experiments to develop a safe and fast iOS application to enhance user financial experiences. Utilize a design and automation system that generates screens from defined models and a fully Swift project split into over 150 modules, allowing you to concentrate on core logic during development. Who We Want to Work With Ideal candidates will have over 3 years of experience in iOS development or possess equivalent skills. Proficiency in Swift development and experience with RxSwift are highly desirable. An understanding of iOS and Apple's design philosophy (HIG) is preferred. Strong comprehension of network and encryption algorithms is required. Familiarity with performance and stability improvement tools such as Instruments is advantageous. Resume Tips Please share any experiences where you demonstrated ownership and led your own projects or overcame challenging technical problems. We appreciate familiarity with testable code practices and experience in automation for testing and deployment. Let us know if you have experience in developing large-scale services. It's worth noting that some of our team members began their journey with RxSwift at Toss; we value solid fundamentals, logical thinking, and the ability to implement code more than specific technical stacks or frameworks. Technologies Used at Toss Multi-module App, Micro Feature Architecture, Example (Micro) App Swift Concurrency, RxSwift, Combine AutoLayout, FlexLayout, and more.

Join our innovative team at tosscareers as a Server Developer (Foundation). In this role, you will be instrumental in building robust server-side applications that drive our technology platform. You will collaborate with cross-functional teams to develop scalable solutions that enhance user experience.

As a Personal Assistant, you will be at the forefront of operational excellence, providing vital support to our team in a fast-paced environment. Your organizational skills will ensure that our daily operations run smoothly and efficiently, allowing us to focus on delivering outstanding service to our clients.

Join Us Without a Portfolio!If you have practical research experience in any domain, feel free to apply without a portfolio.How Tossplace UX Researchers WorkWe delve into real-world issues occurring in offline stores and conduct research to propose product strategies. Understanding the behaviors and contexts of both owners and customers is essential for creating effective products.As a UX Researcher, you'll work closely with the product team. Instead of merely executing research requests, you'll identify product issues and collaboratively drive strategic proposals.Engaging from the initial stages of product development, you'll derive insights necessary for prioritizing product features, moving beyond simple usability tests or satisfaction surveys. Our research process is designed to connect findings directly to actionable outcomes.At Tossplace, we tailor research methodologies to reflect the unique characteristics of offline store operations, continuously exploring various methods to address these.Responsibilities You'll Share with UsIdentify product issues in offline store environments and effectively communicate the voices of owners and customers to the team.Lead research efforts for hardware and software products, such as table orders, POS, and payment devices.Based on user feedback, suggest directions for product improvements and identify key areas for enhancement.Investigate user experiences through appropriate research methods including usability testing, in-depth interviews, focus group interviews, surveys, and field observations.Establish processes and provide training to enable diverse team members to hear directly from owners.Your ProfileHands-on experience in conducting UX research on practical projects is essential.You should be capable of selecting optimal research methodologies suited to various situations and effectively communicating research outcomes to guide product direction.Strong communication skills are necessary to collaborate smoothly with siloed teams and persuade stakeholders for product improvements.Experience or a solid understanding of enhancing user experiences with digital products (web, apps) or offline products is preferred.A desire to observe user behaviors firsthand, beyond just desk work, and uncover the essence of problems is highly valued.Experience in managing multiple research projects simultaneously in a fast-paced environment is a plus.Important NotesThis position allows for applications without a portfolio, so don't hesitate to apply even if you've faced challenges in portfolio creation.Please detail specific practical projects where you designed and conducted research aimed at improving user experiences through the 'Apply' button. Research projects or side projects are not suitable as application examples.Focus on outlining the process of defining project problems, setting hypotheses, designing and validating research, and deriving results. Sharing what you learned during this process is encouraged.Interviews will be conducted in-depth based on two examples you choose, independent of portfolio submission, and you will need to prepare separate presentation materials later.Your Journey to Joining TossplaceApplication Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation > Final Acceptance and OnboardingA Message for Future Colleagues“Research for reports simply doesn’t exist here!”If you have experience as a researcher, this will resonate with you. The research conducted here focuses on real product improvement issues, allowing you to see how research outcomes are directly reflected in products.

Join our dynamic team at Tosscareers as an Account Manager! In this role, you will play a key part in cultivating and maintaining strong relationships with our clients, ensuring their needs are met and exceeded. You will be responsible for driving customer satisfaction and identifying opportunities for growth.

Role Overview tosscareers is hiring a Business Analyst in Seoul. This role centers on analyzing business data and trends to support better decision-making across the company. The Business Analyst partners with different teams to improve how the business operates. What You Will Do Review and interpret data to identify patterns and trends Deliver actionable insights that inform business strategies Collaborate with multiple departments to boost operational efficiency

Role Overview Tosscareers is hiring an OpenStack Cloud Engineer in Seoul. This role focuses on designing, deploying, and managing cloud infrastructure using OpenStack. The engineer will help shape and maintain Tosscareers’ cloud services. What You Will Do Design and implement cloud infrastructure solutions with OpenStack Deploy and manage cloud environments to support business needs Work to improve the scalability, reliability, and security of cloud services What We Look For Hands-on experience with OpenStack Strong interest in cloud technologies Ability to support innovation and operational improvements in cloud environments Location This position is based in Seoul.

About the Role tosscareers is looking for a Research Assistant in Seoul to help advance ongoing research projects. This position supports key research efforts with careful analysis and a strong focus on accuracy. What You Will Do Assist with research tasks and data collection Support project teams by organizing and analyzing information Contribute to the progress of active research initiatives Location Seoul

Join Our Team! As a Frontend Developer at Tossplace, you'll be an initial member, gaining diverse experiences. We're shaping the future of the offline payment industry, planning exciting changes in the payment ecosystem. You'll collaborate with Product Owners, Designers, and Hardware Engineers to successfully launch top-notch payment devices. Our frontend chapter collaborates closely like a single team, sharing new tech topics and development expertise during weekly 'Tech Talks' and conducting code reviews. This year, our goal is to scale our frontend chapter to meet the increasing resource demands of Toss's business. Explore Everything About Toss Frontend Chapter Your Responsibilities At Tossplace, we solve various challenges to drive digital innovation in the offline payment market. As one of the initial members, you will develop solutions to challenging problems encountered in the B2B offline payment market from the ground up. You will create the essential POS (Point Of Sales) systems that support all platforms via a single source code using web technologies. In addition to POS, you'll develop web views for kiosks and payment devices used by customers in stores. Moreover, you will work on desktop webpages such as owner dashboards and mobile webpages for table orders and pickups. You’ll encounter unique and challenging frontend development experiences as you adapt to various offline store environments. Who We're Looking For Proficiency with SPA frameworks like React is highly desirable. Experience with Electron and web apps within mobile apps is a plus. Familiarity with static type analysis in JavaScript using TypeScript or Flow is preferred. We need someone who can proactively identify problems and analyze solutions rather than just implementing given tasks. Services You'll Handle POS: This system manages orders and payments, acting as a control tower for various products within Tossplace. It helps manage customer reservations in service sectors, providing CRM functionalities like points, stamps, and coupons. It also ensures seamless communication with payment terminals and receipt printers for smooth store operations. Kiosk: You'll also work on kiosks that improve customer interactions in F&B settings.

# About the Team You Will Join- As a Frontend Developer at Toss Bank, you will be part of a purpose-driven team/squad and simultaneously belong to the Frontend Chapter, a functional organization. Frontend Developer in the Product Organization- At Toss Bank, product and service development occurs within team/squad units, where various roles such as PO/PMs, designers, frontend/server developers, and data analysts collaborate with high levels of autonomy and accountability, akin to a startup. Frontend Developer Lead in the Chapter- With the growth of the chapter, the F-Lead (Frontend Lead) role has emerged to effectively manage smaller groups. Each group comprises 4-5 Frontend Developers handling similar products, with the F-Lead guiding these teams.- By fostering a deep understanding and empathy for the product, you will lead high-quality engineering discussions to set technical goals and explore directions.- Interested in learning more about the Toss Bank Frontend Chapter? [→ *We are building a bank on the web*](https://toss.im/career/article/tossbank-frontend-interview)- Curious about the growth opportunities post-joining? [→ *A week in the life of a Toss Bank Frontend Developer*](https://toss.im/career/article/tossbank-frontend-oneweek) # Role of the Frontend Developer LeadThe F-Lead plays a pivotal role in providing engineering leadership within the Frontend Chapter. This position involves leading a group, managing development discussions and issues, and outlining technical directions. It extends beyond simple feature development to encompass continuous service improvements.The ideal candidate will possess practical technical skills and be capable of engaging in various activities that promote team growth.- Execute frontend operations promptly based on technical excellence, achieving product growth through appropriate direction.- Manage technical debt and establish a clear vision, leading the group’s engineering meetings to drive discussions.- Foster connections among fellow developers, inspiring growth, career development, and motivation for tangible changes.- Monitor project status, provide input for resource allocation, and enhance the development environment and processes.- As a Frontend Developer in a team/squad organization, you will collaborate with other roles such as planning, design, and data analysis to create and develop products aimed at user growth. # We Are Looking For- A leader who aspires to support and empower colleagues to work more effectively rather than merely managing them.- Someone who proactively identifies problems and collaborates with teammates to find solutions, beyond just completing assigned tasks.- A person with the ambition and goals to create a significant business impact through development.- An individual who prioritizes user experience and aims to maximize service accessibility and performance. # Technologies Used at Toss Bank- Core: React, TypeScript, Next.js- State Management: React-Query, Jotai, Zustand- Styling: Emotion, Panda CSS- Package Managers: Yarn Berry, Bun- Build Tools: Webpack, Rollup, ESBuild, SWC, Babel- CI/CD: GitHub Actions, GoCD # Joining Toss Bank Journey- Application Submission > Preliminary Task > Job Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation > Final Acceptance and Onboarding # Important Notice- If false information is found in your resume or documents, or if disciplinary actions during your employment history are confirmed, recruitment may be canceled.- According to Toss Bank's employment regulations, candidates with disqualifying factors may also have their recruitment canceled.- Individuals with disabilities and those eligible for national veterans' benefits will be favored during the application process.

Welcome to Toss PaymentsToss Payments is committed to understanding the challenges and inefficiencies businesses face, aiming to provide comprehensive solutions across technology and operations. Our goal is to deliver a seamless and convenient service experience for consumers while creating an environment where merchants can focus solely on their business.We work under the principle of 'innovating the electronic payment market', fostering a culture of mutual trust and collaboration. We are looking for colleagues who are eager to help shape the future of the payment industry!About the Team You Will JoinThe Frontend Developer position at Toss Payments is part of both the product team and the frontend chapter. Within the product team, you will collaborate with Product Managers, Product Designers, Server Developers, and fellow Frontend Developers to tackle complex projects in the payment domain, creating sustainable and high-quality services over time. You will have the opportunity to refine and specify the products that leverage your strengths during the interview process.The frontend chapter operates like a cohesive team! We hold regular chapter meetings and share new technology topics or development insights during 'Lightning Talks.' Participate in mob programming, interface design reviews, and various challenges that encourage continuous growth!This year, the frontend chapter aims to scale significantly to support the smooth operation of Toss's growing business.What We Have Accomplished So FarWe developed the payment widget to enable anyone to easily create their desired payment experience after thorough consideration.We designed and applied an intuitive and scalable payment SDK architecture that meets numerous requirements.We are enhancing dashboards and admin products to effectively address the complex policies and management elements from merchant contracts to payments and settlements.Beyond product development, we take the lead in reducing various inefficiencies within the company through the establishment of testing automation platforms, design standardization, and sharing development capabilities.Future Challenges We Want to Tackle TogetherWe look forward to crafting products that flexibly accommodate complex requirements. We are already applying technical challenges to effectively manage complexity in the payment domain while maintaining scalability. However, to drive these goals forward, we need more teammates to support us.We aim to completely eliminate accumulated legacy.The long-standing electronic payment market has not been without its technical debt. We are seeking individuals who can analyze areas that are hard to control or manage, rapidly reconfigure them with new technologies, and help create an environment where the business can grow swiftly.Who We Want to Work WithIndividuals who place high value on developer experience.Those who understand and practice the importance of automated testing.Enthusiasts of new technologies and various platforms.Individuals keenly interested in programming languages.Those who find joy in simplifying complex business challenges.Experience We ValueExperience with static type analysis using TypeScript or Flow is a plus.Experience in server-side rendering (SSR) and web app development within mobile applications is a plus.Experience in UI development considering responsive design, web accessibility, and web standards is a plus.Experience in test and deployment automation is a plus.Experience in configuring the operational infrastructure of web services or creating product monitoring systems is a plus.

About the Role Toss is looking for a Frontend Developer in Seoul to help build and improve web applications. This role works closely with designers and backend engineers to deliver smooth, effective user experiences. The team values modern frontend development and keeps up with current technologies. What You Will Do Develop and maintain web applications for Toss products Work with designers to translate UI/UX designs into functional interfaces Collaborate with backend developers to integrate APIs and data Use current frontend tools and frameworks as part of daily work Location This position is based in Seoul.

Join our innovative team as a Frontend Platform Engineer, where you will play a pivotal role in developing and enhancing our cutting-edge frontend technologies. You'll collaborate closely with cross-functional teams to design, implement, and maintain high-quality user interfaces that elevate our platform's performance and user experience. If you're passionate about creating seamless web applications and have a knack for problem-solving, we want to hear from you!

Join Our Dynamic Team! At Toss Bank, we focus on evaluating potential through the quality of your experiences and the expected growth in your career, rather than just years of service. About the Team You Will Join Our squads consist of 1-3 Frontend Developers collaborating closely to foster both service development and personal growth. As a service-oriented squad, we operate with autonomy, with teams ranging from 4 to 15 members, akin to small startups. The Frontend chapter at Toss Bank collaborates like a cohesive unit, sharing new technologies and development expertise through weekly meetings. Want to learn more about our Frontend chapter?→ *We are building a bank on the web*(https://toss.im/career/article/tossbank-frontend-interview) Curious about the growth opportunities after joining?→ *A week in the life of a Toss Bank Frontend Developer*(https://toss.im/career/article/tossbank-frontend-oneweek) Your Responsibilities You will develop a wide range of services, from internal operating systems to customer-facing financial services like account creation, card applications, savings, and loans. Enhance productivity by building libraries and automation tools, continuously improving the frontend development environment for optimal user experience. You will also work on common services like the Toss Bank homepage and corporate user services. Who We Are Looking For Individuals with experience in server-side rendering (SSR) and developing web applications within mobile apps. Passionate developers who enjoy understanding user flows deeply and enhancing user experiences for greater convenience and efficiency. Proactive problem solvers who can articulate and share their ideas logically. Those interested in automating and improving Frontend Operation systems (CI, CD, etc.). The Services You Will Manage You will create financial services such as savings, loans, credit cards, funds, and asset management that users directly engage with, including innovative products like 'Group Savings' and 'Grow Savings'. Take responsibility for the entire process from credit evaluation to card issuance and user experience, while driving growth through data-driven experiments that enhance MAU, profitability, and customer satisfaction.

Join Toss Payments as a Frontend Developer and be part of a dynamic team that builds user-friendly payment solutions. While we primarily seek candidates with over 4 years of experience, we also welcome passionate developers with at least 3 years of experience to apply for other positions listed in our job postings!About the Team:The Frontend Developer role at Toss functions within a matrix structure, collaborating closely with Product Owners, Designers, Server Developers, and Data Analysts to deliver innovative services and products.The Frontend Chapter operates as a cohesive team, sharing knowledge through regular 'Tech Talk' sessions and engaging in collaborative library development and code reviews.This year, our goal is to scale the Frontend Chapter to meet the growing demands of Toss's business, ensuring smooth operations across our platforms.Your Responsibilities:Develop safe and user-friendly payment interfaces.Create various B2B SaaS products to support merchant businesses.Enhance the frontend development environment with a focus on delivering exceptional user experiences and contribute to the creation of shared libraries like TDS.What We Are Looking For:Proficiency in SPA frameworks such as React, Vue, or Angular.Strong understanding of HTML, CSS, and JavaScript.A keen appreciation for UI/UX principles.Experience with distributed version control systems like Git.Please Highlight These Experiences on Your Resume:Experience with static type analysis in JavaScript using TypeScript or Flow.Familiarity with server-side rendering (SSR) and development of web apps within mobile applications.Experience in UI development considering responsive design, web accessibility, and web standards.Experience with testing and deployment automation.Proficiency in using module bundlers like Webpack.Technologies We Use:Core: React, TypeScript, Next.jsState Management: React-QueryStyling: EmotionPackage Manager: Yarn Berry

주요 업무개발 및 개선: 토스신용카드, 내 보험 조회, 행운퀴즈 등 토스 앱의 웹 서비스.PC 웹 서비스: 토스 홈페이지 등 다양한 웹 서비스 개발.사용자 경험: 완벽한 사용자 경험을 위한 프론트엔드 개발 및 배포 환경 개선 참여.UI 라이브러리: 사내 프론트엔드 공통 UI 라이브러리(TDS) 개발.

Join our innovative team as a Frontend Platform Engineer at Toss, where we revolutionize the way people manage their finances through cutting-edge technology and seamless user experiences.

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.