Frontend Software Engineer - Notifications Team

Welcome to the Daangn Team Journey!At Daangn, we are committed to creating an environment where individuals can grow alongside the company's success.Our recruitment team is here to help you engage in meaningful discussions with wonderful colleagues. Introducing the Notifications TeamThe Notifications Team plays a crucial role in shaping the user notification experience at Daangn. Notifications serve as the most powerful channel to reconnect users with the app outside of it. This direct interaction on the user’s phone lock screen can influence the behavior of our 20 million monthly active users. We are not just a team that sends notifications; we design the moments that bring users back to Daangn and guide them to their next actions.The notification experience goes beyond a single push notification. It can lead users directly to chatrooms or posts, and help them rediscover missed interactions within the app's notification center. While push notifications initiate actions, the notification center serves as a space to reconnect relationships and context. Our team collaborates to design these two experiences, fostering connections both inside and outside of Daangn.Daangn encompasses more than 15 services at different stages of growth, including second-hand trading, part-time jobs, real estate, and community forums. The Notifications Team develops a comprehensive experience that ensures notifications reach users meaningfully and translate seamlessly into actions.We are currently moving beyond traditional formulas to discover new strategies for Daangn's next growth phase. In our small team, engineers contribute to defining problems, proposing directions, and designing experiments that shape the future of our products.Your ResponsibilitiesRedesign the notification center to enable users to quickly grasp and act on notifications from over 15 services, focusing on list structure, grouping, read/unread status, personalization, and filtering.Implement seamless entry experiences for users who tap on push notifications, guiding them to appropriate contexts like chatrooms, posts, or specific service pages.Develop the frontend for tools that precisely target and manage notifications based on user segments, banners, and event flows, creating a foundation for faster experimentation.Collaboratively build an experimental environment to measure click-through rates, conversion rates, and incremental effects, enabling rapid A/B testing.Work closely with PMs and designers to provide input on product direction based on technical feasibility and constraints.We Are Looking ForIndividuals with over 3 years of frontend development experience.Experience in developing mobile webview applications.A strong commitment to delivering high-quality user experiences.Ability to understand product goals and context, and to collaboratively explore better solutions beyond just implementation.Flexibility to adapt in a fast-paced environment requiring rapid experimentation and iteration.Additional Preferred QualificationsExperience developing frontends for user communication channels such as push notifications, in-app messages, and notification centers.Familiarity with building A/B testing infrastructure or experience in experimental development cycles.Experience utilizing design systems or component design.Experience building platform frontends that integrate with various services.Experience in performance optimization, loading strategies, and list rendering in large-scale user environments.Additional InformationFor full-time positions, there is a 3-month probation period.We prioritize the hiring of individuals with disabilities and veterans as per the 'Act on the Promotion of Employment of Persons with Disabilities' and 'Act on the Honorable Treatment and Support of Veterans'.Application Process1. Document screening → 2. Video interview (live coding test) → 3. Job interview → 4. Culture fit interview and reference check → 5. Negotiation → 6. Final acceptance and onboarding

Welcome to Your Journey with Daangn Team!At Daangn, we strive to create an environment where individuals can grow alongside the company. Our hiring team is here to assist you in achieving those joyful moments with wonderful colleagues. Introducing the Commerce TeamThe Commerce Team is dedicated to creating a new shopping experience within Daangn. We aim to redefine local commerce in our unique way, moving beyond just an online shopping mall. Our platform connects seamlessly with various Daangn services such as second-hand trading, community engagement, and local maps, allowing our 20 million users to enjoy shopping in a familiar environment.Our commerce platform embodies Daangn's DNA of community engagement, fostering group purchases with neighbors and offering exclusive local merchandise that provides new values not found in traditional e-commerce. We envision a commerce experience that makes shopping special through neighborly connections.The Commerce Team operates like an early-stage startup. Everyone acts as a project manager and researcher, obsessively focusing on customer problems. We encourage cross-functional collaboration, where anyone can propose ideas, experiment, and learn from outcomes. Quick execution and a learning attitude from failures are essential to us.Your RoleCurrently, we are focused on solidifying the fundamental functions of commerce such as product management, payment, delivery, and exhibitions. However, we plan to gradually introduce innovative commerce features infused with Daangn's unique character. Your ideas and execution will play a crucial role in shaping the direction of our services.Create an Engaging Commerce User ExperienceDesign and implement intuitive interfaces from product exploration to purchase completion.Ensure a consistent shopping experience across web views and websites while rapidly deploying event/exhibition pages.Experiment and Learn QuicklyQuickly implement and test various experimental features that go beyond traditional commerce functionalities.Regularly conduct A/B testing and continuously improve user experience based on data.Develop Efficient Management Tools for SellersBuild seller pages for product registration, order/inventory management, and settlements.Provide dashboards that visualize sales performance at a glance through data visualization.Maximize Development Speed with AIRapidly implement UI components and prototypes using tools like Claude Code and Cursor.Automate repetitive tasks with AI, investing saved time into user experience innovations.Ideal Candidate Profile4+ years of experience in frontend development.Obsessive about solving customer problems and committed to seeing projects through to completion.Quickly adapt to new tech stacks and balance rapid execution with scalability considerations.Collaborate openly with diverse teams and maintain a learning attitude from failures.Make autonomous engineering judgments and executions even before business decisions.Actively utilize AI tools (e.g., Claude Code, Cursor) to enhance productivity and focus on business impact.Preferred QualificationsExperience with TypeScript and React.Understanding and experience in the e-commerce domain.Handled complex state management (e.g., Recoil, Zustand).Familiarity with GraphQL architecture and experience using Relay.Understanding of execution environments (e.g., web browsers, in-app web views) and their policies.Additional NotesThis is a full-time position with competitive compensation and benefits.

Join our dynamic team at Daangn as a Frontend Software Engineer dedicated to building engaging community platforms. You will be responsible for developing user-friendly web applications that enhance user experiences and foster community interaction. Collaborate with cross-functional teams to design and implement innovative solutions that meet the needs of our users.

Join Daangn as a Frontend Software Engineer Intern and contribute to creating exceptional user experiences for our platform. This is an exciting opportunity to work under the guidance of seasoned professionals in a dynamic environment.

Welcome to the daangn Team!At daangn, we are dedicated to fostering an environment where individuals can grow alongside the company's success.Our recruitment team is here to support you in having meaningful interactions with wonderful colleagues. Introducing the Notifications TeamThe Notifications Team is responsible for crafting one of the most powerful engagement channels at daangn. Notifications serve as a critical channel to bring users back to our platform, as they reach directly to users’ lock screens. This team plays a vital role in designing how and when to prompt 20 million MAU users to engage with daangn again, addressing impactful challenges directly linked to our service growth.With over 15 services, including second-hand trading, part-time jobs, real estate, and community engagement, daangn’s growth requires tailored notifications. New services need notifications to quickly build user relationships, while mature services require precise notifications that avoid user fatigue. The Notifications Team designs experiences that align with service goals and user contexts, enhancing overall app engagement and behavior conversion.As a designer, your role extends beyond screen design. You'll define problems, form hypotheses, design experiments, and contribute to strategic decision-making.If you are eager to tackle significant challenges with high ownership and thrive in areas without clear answers, you will find our team particularly enjoyable.Your ResponsibilitiesDesign the user journey from notification to app engagement, conversion, and return visits.Create information structures, grouping, and read/unread systems to help users easily understand notifications from over 15 services, while also designing conversion experiences leading to immediate actions.Facilitate initial user loops for newly launched services and consider the brand trust impact of notifications for widely used services, as the same notification may require entirely different designs based on context.Design experiments to prove whether a notification influences specific user actions, using results to determine future directions.Collaborate with PMs and engineers while sometimes taking initiative to define problems and lead projects, working as a designer who actively contributes to product creation.We Are Looking ForA candidate with over 3 years of experience in Mobile/Web service design.Someone who can think about the flow and goals of the entire product, not just design.A data-driven individual who is accustomed to defining problems and finding answers through rapid experimentation.Someone who can logically express and advocate for their designs, while deeply immersing themselves in the product amid high speed and uncertainty.Bonus QualificationsExperience designing or improving user communication channels such as push notifications, in-app messages, and CRM.Experience in a PM role or leading initiatives from planning to experiment design.Experience designing common user experiences across multiple services in a platform.Experience validating incremental effects through A/B testing and integrating results into design.Strong interest in precise user targeting through user segments, personalization, and targeting.Additional InformationFull-time employment includes a 3-month probation period.Preference is given to individuals with disabilities and veterans as per the 'Act on the Promotion of Employment for the Disabled' and 'Act on the Honorable Treatment and Support of Veterans'.Please submit your portfolio along with your application.

Join the Toss Securities Frontend Chapter!At Toss Securities, we are dedicated to creating innovative mobile products that seamlessly integrate native Android and iOS applications with web views using modern web technologies. Our mission is to simplify complex investment products, ensuring that everyone can enjoy a user-friendly and sleek investment experience.We leverage cutting-edge engineering techniques to showcase real-time data without interruptions, optimizing performance for our users.Your Responsibilities:- Optimize performance across various domains including browser, CDN, and network to provide the best user experience for over 2.5 million daily active users and 90,000 concurrent users.- Provide guidance and modules to product developers for easy performance optimization.- Actively manage a redundant deployment infrastructure utilizing cloud services such as AWS and Cloudflare.- Develop monitoring and error response tools tailored for real-time traffic.- Build a self-service MFA development framework that allows independent development across teams.- Provide a client log SDK operated by Toss Securities.- Create a development environment that facilitates a smooth transition between native and web view screens, free from compatibility issues.What We've Achieved:- Our mobile products at Toss Securities operate as a unified service, employing a Micro Frontend Architecture (MFA) to reduce complexity in product development.- Implemented a SharedWorker-based module to optimize WebSocket communication for our PC platform.- Established a deployment pipeline that supports rapid and reliable FE platform releases multiple times a day.What We're Looking For:- A deep understanding of frontend development and deployment environments.- Proven experience in identifying and improving issues within these environments.- Experience in accurately analyzing and resolving root causes beyond merely solving problems.- A background in automating frequent tasks to a high degree.- A keen interest in testing within frontend environments.Resume Tips:- Highlight the impact and learning points from your experiences, rather than just listing them.- Share your understanding of web browser mechanics and any experiences that improved web service performance.- Provide details on your understanding of transpiling and bundling, especially in supporting a wide range of browsers efficiently.- Mention any experience managing multiple packages within a single monorepo.- Discuss your proactive approach to researching and adopting new technologies.Technologies We Use:- Core: React, TypeScript- Package Managers: PNPM, Yarn- Build Tools: ESBuild, Vite, Webpack, SWC, Babel- Infrastructure: AWS, CloudFlare, Terraform- Monitoring: Sentry, Grafana- CI/CD: GitHub Actions, GoCDYour Journey with Toss Securities:- Application submission > Pre-assessment task > Technical interview > Cultural fit interview > Reference check > Offer negotiation > Final acceptance and onboarding.Please Note:- Any false information in your resume or disciplinary issues during your employment history may result in cancellation of recruitment.- Candidates subject to hiring restrictions according to Toss Securities regulations may also be disqualified.- Individuals with disabilities and veterans will be given preferential consideration in accordance with relevant laws.- The job title upon joining will be 'Frontend Developer'.A Message to Future Colleagues:"We support our best colleagues to achieve exceptional performance."

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!

Daangn is seeking a Frontend Software Engineer Intern to join its real estate platform team in Seoul. This internship offers the chance to work alongside experienced developers and contribute to projects that influence how people interact with real estate online. What you will do Work closely with the engineering team to build and refine frontend features for the real estate platform. Write, review, and maintain code with guidance from seasoned developers. Support efforts to enhance user experiences related to property search and discovery. Location This position is based in Seoul.

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.

About Toss Insurance- Toss Insurance specializes in managing and selling insurance, focusing on reducing financial risks for customers and providing tailored coverage through a trust-based approach to insurance design aimed at achieving maximum customer satisfaction.- We strive to create a virtuous cycle where designers who provide excellent service from the customer's perspective can achieve greater results by building a consultation environment that focuses solely on customer satisfaction, without excessive sales pressure, and fostering a healthy insurance ecosystem.- Our goal is to develop an insurance management platform where agents, employees, and the company can grow together by providing an optimal IT infrastructure that allows everyone to fully utilize their expertise.About Your Future Team- As a Frontend Developer at Toss Insurance, you will collaborate with various colleagues to develop mobile products that are integrated into the Toss app, as well as an admin panel for managing user data.- Toss Insurance adopts an agile approach to product improvement, with teams engaging in product planning and brainstorming sessions roughly every 1-2 weeks. We rapidly formulate hypotheses, deploy products, gather feedback from customers, and refine our hypotheses based on that feedback.- The chapter of frontend developers collaborates organically across all Toss affiliates. Regular chapter meetings, including 'Tech Talks,' facilitate knowledge sharing on new technology topics and development know-how, as well as the development of common libraries for UI components and asynchronous processing.- You will be joining a team that includes another frontend developer. For insights into a day in the life of a Toss Insurance frontend developer, check out the article [How Does a Toss Insurance Frontend Developer Spend Their Day?](https://toss.im/career/article/insu_dailylog_Frontend_Developer).- For more on the Toss frontend chapter, see [All About Toss Frontend Chapter](https://tosspublic.notion.site/cc9367e44ff6424181899f3cf250f5d2).Your Responsibilities- You will create various screens within the Toss Insurance section of the Toss app, enabling customers to experience the best insurance coverage at the right price.- You will enhance the insurance consultation and customer management systems of Toss Insurance, allowing agents to consult effectively with clients. This role will provide you with extensive technical experience, from infrastructure to the customer-facing screens.- We are improving our frontend development environment to ensure that our web services are built and deployed in just one minute, all while providing the best user experience.Who We Want- We are looking for someone who can confidently develop stable services using React and TypeScript.- It’s important that you can define problems based on provided design guidelines and implement solutions swiftly.- We need someone who is proactive in identifying and analyzing problems to suggest effective solutions, rather than just completing assigned tasks.- Experience in improving legacy code to fit modern development environments or rapidly learning new tech stacks is a plus.Resume Tips- Instead of merely listing your experiences, please highlight the impact and learning points from your past work.- As we prioritize improving product quality based on customer feedback, we are looking for candidates who actively attempt to solve given problems.- If you have experience implementing complex services or demanding requirements, especially abstracting complicated or repetitive issues into simpler forms, please share.- Please mention any experience in gradually transitioning existing source code to a new codebase.Technologies We Use at Toss Insurance- Core: React, TypeScript, Next.js- State Management: React-Query, Recoil- Styling: Emotion- Package Managers: Yarn Berry, PNPM- Build: Webpack, ESBuild, SWC, Babel- CI/CD: GitHub Actions, CircleCI

Join the Frontend Chapter at Toss Securities!We are developing mobile and desktop products using modern web technologies, including services for Android and iOS app web views and back-office operations.Our goal is to provide a sleek investment experience that makes complex investment products accessible to everyone while leveraging optimal engineering techniques to display real-time data seamlessly.About the TeamCollaborate with Platform Designers to define what constitutes an excellent UX for Toss Securities services.Assist designers in creating high-quality UX designs and develop tools that simplify implementation for developers.Your ResponsibilitiesDevelop and maintain the design system utilized in Toss Securities services.Establish principles and structures that ensure the design system provides consistent and scalable interfaces.Define UX rules such as responsive design, keyboard usability, and loading experiences to ensure comfortable use across all environments.Create a “Design Linter” that allows designers to receive suggestions for improved UX directly in design editor tools.

Join the Frontend Chapter at Toss Securities! We create cutting-edge mobile products that operate in web views for Android and iOS apps, as well as desktop products for PC browsers and back-office operations, leveraging modern web technologies. Our goal is to simplify complex investment products, providing a sleek investment experience that is accessible to everyone. We utilize optimal engineering techniques to continuously display and trade vast amounts of real-time data seamlessly. Technologies We Use: React, Next.js, TypeScript: Building efficient UIs with component-based architecture and reducing bugs through static type checking. React-Query, Recoil, Jotai: Utilizing appropriate state management for server and client. Emotion, Vanilla-extract: Styling mobile products with emotion and desktop products with vanilla-extract. TDS (Toss Design System): Enhancing development productivity using our robust design system, contributing from bug reporting to component creation. WebSockets, SSE: Efficiently managing real-time data and optimizing server requests. YarnBerry, PNPM: Using package managers to their full advantage. Webpack, SWC, Babel: Improving development productivity with rapid build and deployment speeds. GitHub, GitHub Actions: Managing source code on GitHub with automated reviews by a minimum of two reviewers, supported by various GitHub bots performing static analysis and tests. Why Join Toss Securities Frontend Chapter? If you're a developer with a keen interest in investing, you can enhance both your development skills and investment knowledge simultaneously. Gain experience with various data visualizations such as charts, graphs, and tables while exploring how to optimize the performance of visualized real-time data. Experience handling real-time price traffic of up to 1400 TPS through sockets. Contribute to creating a design system exclusively for securities products. Participate in Engineering Days held every two weeks, where we share learning and insights on technology topics and development know-how through Tech Talks. We actively share knowledge and best practices to enhance productivity, even outside of Engineering Days. Engage with other frontend teams across different affiliates, fostering a culture of collaboration and knowledge exchange. We Are Looking For: Individuals with experience in operating web-based services. A passion for development and a strong desire for growth, even if only interested in investing. Understanding the importance of predictable code and executing it effectively.

# 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.

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 Us to Create the Future of Communication!At ChannelTalk, we are dedicated to driving sustainable growth for businesses through our all-in-one AI messenger, which focuses on enhancing customer conversations to guide business directions effectively.Embracing the philosophy that 'the customer has the answers', we integrate CRM-based support experiences with AI automation to streamline customer service efficiency and improve customer experiences, all within a single product. Our rapid growth, achieving over 20% market share in Japan, sets a solid foundation for our ambitious expansion into the US market as a global SaaS leader.We collaborate with top talents to develop a 'future classic' product that could symbolize a new generation, much like Google Search and the iPhone.

Join Our Team! At Toss Bank, we are dedicated to developing a wide range of frontend products, while also designing and building internal banking systems for operational efficiency. Our squads, which consist of 4 to 15 members, operate autonomously like small startups, focused on creating exceptional services and products. The Toss Bank Frontend Chapter collaborates seamlessly, conducting weekly meetings to address technical debt and sharing insights on new technologies and development practices through 'Lightning Talks'. Your Responsibilities Include: Developing products aimed at revolutionizing the banking system in South Korea and enhancing team productivity. Identifying and automating repetitive, manual operational tasks such as ID verification, seizure and collection processes, certificate issuance, and financial transaction information provision to maximize efficiency. Participating in the design process by understanding business requirements and crafting user interfaces. Optimizing admin UX/UI by platforming internal operational tools, thereby enhancing development productivity. We Are Looking For: A candidate with a strong understanding and experience in React. Proficiency in TypeScript to develop reliable and testable applications. A passion for understanding user perspectives and building systems that enhance operational efficiency beyond basic feature implementation. Proactive problem-solving skills and the ability to articulate ideas effectively. Experience in building admin products is a plus. Experience in developing dashboards and reporting functionalities for service operations is a plus. A background in enhancing operational efficiency and automation beyond basic CRUD operations is a plus. Technologies We Use: Core: React, TypeScript, Next.js State Management: React-Query, Jotai, Zustand Styling: Emotion, Panda CSS Package Manager: Yarn Berry, Bun Build: Webpack, Rollup, ESBuild, SWC, Babel CI/CD: GitHub Actions, GoCD Your Journey to Joining Toss Bank: Application submission > Pre-assignment > Job Interview > Cultural Fit Interview > Reference Check > Compensation Discussion > Final Acceptance and Onboarding Important Notes: This position is a contract role with a duration of 1 year. If any false information is found in the resume or if disciplinary issues are confirmed in the work history, the employment offer may be revoked.

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.

Key ResponsibilitiesDesign, develop, execute, and manage test cases to ensure the quality of our software solutions.Lead the verification of our solutions' functionality, performance, compatibility, and reliability.Analyze and reproduce issues that arise during the verification process and collaborate with relevant teams such as development, hardware, and operations to resolve them.Analyze and diagnose issues occurring in customer environments, contributing to internal solution improvements and enhancing customer satisfaction.Develop test scenarios and establish validation plans based on customer requirements.Build and enhance a verification framework based on quality standards throughout the product lifecycle.

About the Team You'll Join- As a Payment Software Engineer at Toss, you'll be part of the Device Team, collaborating with Device Owners, Device Software Engineers, Embedded Software Quality Engineers, and Hardware Engineers.- The Device Team is at the forefront of revolutionizing the offline payment industry, crafting innovative changes in the payment ecosystem.- You will work alongside Business Development Managers, Purchasing Managers, Android/Server Developers, and others to successfully launch top-tier payment devices.Your Responsibilities- Develop payment applications across multiple OS environments (Android, Windows, Linux, RTOS).- Specialize in card data processing tailored for VAN companies and develop communication protocols.- Conduct security certifications in compliance with credit card associations.- Develop and certify EMV, Tmoney, and Weezle applications.- Work on NFC feature development and Apple Pay integration and certification.Who We’re Looking For- We seek an individual with over 5 years of experience in payment domain development using C and C++.- Experience in developing payment module firmware or applications is a strong plus.- Familiarity with credit card security certification or EMV certification is highly desirable.- Experience in developing Vcat or DLL for POS systems would be advantageous.Your Journey with Toss- Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding.A Note for Potential Colleagues"You can be part of realizing a dream!"- I am currently developing payment software at Toss. If you're eager to experience the thrill of developing hardware products, this is the place for you.- If you've ever seen a Toss terminal, you've witnessed the process of our dreams coming to life.- At Toss, you will focus on development amidst passionate teammates and a unique culture, allowing you to challenge new frontiers.