Frontend Software Engineer Intern | Daangn

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.

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

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 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.

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 daangn as a Backend Software Engineer and be part of a dynamic team dedicated to revolutionizing the commerce landscape. In this role, you will work on innovative backend systems that enhance user experience and operational efficiency.

# About the Team- Join us in enhancing customer experiences using data and machine learning within the Toss Commerce domain.- Toss consists of multiple domains, each operating as a complete business, including Commerce, Pay, Financial Marketplace, Ads & Benefit, Foundation, and Growth.- The Commerce domain has been the fastest-growing segment of Toss.- Initially launched to activate Toss Pay and expand transaction volumes, Toss Commerce has since introduced Toss Shopping and seller admin services, along with shopping ad services, providing new value to both users and sellers.- Within the Commerce domain, various teams operate like startups, including Shopping Silo, Shopping Platform Team, Shopping Ads Silo, and Commerce Business Team.- As we move into 2024, we plan to lay the groundwork for significant growth by launching diverse features within Commerce.- **Curious about Toss's Data Organization?** [→ *Toss Data Division Wiki*](https://recruit-data-division.oopy.io/)

# About the Team- As an MLE (Commerce Recommendation) in the Toss Commerce domain, you will play a pivotal role in optimizing product visibility.- Our focus is on designing and enhancing recommendation models based on diverse data sources to present users with more relevant and appealing products.- This team leads the full spectrum of machine learning development, from problem definition to training, performance analysis, and enhancement.- We are building a product recommendation platform that provides meaningful shopping experiences for users by leveraging various ML techniques.- **Interested in learning more about Toss's Data Organization?** [→ *Toss Data Division Wiki*](https://recruit-data-division.oopy.io/)# Responsibilities- Develop models to predict product click-through rates (CTR), conversion rates (CVR), and other key metrics based on user behavior, product information, and contextual data.- Design and refine recommendation algorithms to optimize product exposure using predictive outcomes.- Conduct iterative experiments including model performance analysis, feature engineering, and hyperparameter tuning to enhance recommendation quality.- Quantitatively validate the impact of model improvements through various experiments and offline/online performance metrics.- Collaborate with domain experts and data analysts when necessary to accurately define and solve recommendation challenges.# Ideal Candidate- We prefer candidates with experience in developing recommendation systems or predictive ranking models.- Candidates who have designed and improved machine learning models for predicting user responses, like CTR and CVR, will be highly regarded.- Experience in experimenting, tuning, and analyzing models using various features is a plus.- Familiarity with major ML frameworks such as PyTorch, TensorFlow, and LightGBM is advantageous.- Candidates who have engaged deeply in problem definition and performance analysis beyond merely training models are welcome.- Strong communication skills and the ability to think data-driven while articulating complex problems clearly are essential.# Resume Tips- Detail any impactful projects you have undertaken that influenced your organization significantly.- Explicitly describe the problems you defined, the approaches you selected, and the methods you used in modeling-centered projects.- Highlight any quantitative problem-solving processes you have engaged in through iterative experimentation and performance analysis.# Journey to Join TossApplication > 1st Technical Interview (Coding) > 2nd Technical Interview > Cultural Fit Interview > Reference Check > Offer Negotiation > Final Acceptance- The first technical interview will include a simple coding test, resume review, and ML fundamentals assessment.- The second technical interview will focus on in-depth technical discussions and ML system design.# A Note for Potential Colleagues> "This role goes beyond mere modeling; it makes an impact in business."- The most fulfilling aspect of working at Toss is that we do much more than just modeling.- Previously, my tasks were limited to inputting data into existing models for performance evaluation, but now I am engaged in integrating unaggregated data into models and contributing to impactful solutions based on user understanding for our super app!

# About the Team- The Machine Learning Engineer (Commerce AI) position plays a crucial role in addressing various operational and service challenges within the Toss commerce domain using advanced AI technologies.- The team tackles complex issues like operation automation, seller evaluation, product information, and search quality that require sophisticated judgment across the commerce spectrum.- Utilizing a variety of AI technologies such as LLM, RAG, and multimodal models, we design innovative approaches to define and solve problems.- We go beyond simply solving existing issues; we redefine and expand the problems themselves.- **Interested in learning more about Toss's data organization?** [→ *Toss Data Division Wiki*](https://recruit-data-division.oopy.io/)# Responsibilities- Leverage diverse forms of information including text, images, audio, and structured data to model and resolve complex challenges within the commerce domain.- Experiment with large language models (LLM), RAG, and multimodal models to explore new solutions for previously unsolvable tasks.- Investigate opportunities to apply AI to areas that have not been clearly defined before.- Validate the effectiveness of designed models through offline/online experiments and quantitative evaluations, maintaining iterative improvement routines.- Design solutions that not only emphasize technical sophistication but also consider business applicability and sustainability.# Ideal Candidate- Experience in solving problems using ML technologies, including the latest AI techniques (LLM/RAG, LMM), with a strong understanding of business requirements.- Proficiency in designing models that integrate various forms of data (text, images, audio, structured data) and rapidly adapting them.- Familiarity with applying ML technologies to services and improving them iteratively, along with a comprehensive understanding of service architecture.- Demonstrated leadership throughout the entire process from problem definition to model design, experimentation, and quantitative evaluation.- Proficiency in the latest AI ecosystem, including tools like PyTorch, Hugging Face Transformers, and LangChain.- Experience in designing solutions that account for both technical experimentation and service applicability and scalability.- A keen interest and ability to explore and technically define new problems.# Resume Tips- Instead of merely listing modeling techniques, provide concrete examples of improvements made and their impacts.- Highlight any significant achievements derived from experiments and iterative improvements under various constraints.- Emphasize your role in collaborative processes and how you contributed to problem-solving beyond just technical aspects.# Recruitment Process- Application submission > 1st Technical Interview (Coding) > 2nd Technical Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation > Final Acceptance.- The first interview will include a straightforward coding test, resume review, and basic ML knowledge assessment.- The second interview will focus on in-depth technical discussions and ML system design.# A Note for Future Colleagues> "Solving complex problems with AI is just the beginning.What we truly focus on is re-examining the problems themselves and transforming them for the better."- It’s not just about feeding refined data into models; it’s about contemplating how to technically resolve problems that are still undefined.- We always begin with questions like, "Do we really need to model this?" and engage in a process of redefining the problem to find the most impactful solutions.- We aim to design new workflows led by AI, rather than merely applying AI to tasks that have been traditionally performed manually.

Join our dynamic Commerce domain where innovation thrives! Toss operates multiple domains, each focusing on self-sufficient businesses, including Commerce, Pay, Financial Marketplace, Ads & Benefit, Foundation, and Growth. Our Commerce domain is the fastest-growing segment within Toss. Having launched Toss Shopping and Toss Shopping Partners, along with shopping ad services, we are continuously creating new value for both users and sellers. Inside the Commerce domain, teams like Shopping Silo, Shopping Platform, Shopping Ad Silo, and Commerce Business work collaboratively like a startup. As we embark on this new journey in 2024, we aim to expand the functionalities of our Commerce platform and strengthen its foundational capabilities. Your responsibilities will include: Designing and developing the Product server used by countless Toss Commerce customers. Creating diverse services such as product search/recommendation, catalog management, PLP, PDP, order/delivery, and coupon/promotion features. Utilizing cutting-edge technology to ensure service stability while listening to user feedback and resolving issues swiftly and flexibly.

Join our innovative team at Coupang, where your passion for technology meets real-world problem-solving. We are on the lookout for talented Software Engineers who are eager to create impactful solutions that improve the lives of millions. At Coupang, collaboration is key; our developers learn from each other, share insights, and inspire one another to generate groundbreaking ideas. Our fast-paced environment offers you the chance to address large-scale challenges, enhancing our in-house technology, innovating mobile architectures, and exploring the frontiers of machine learning and deep learning. Together, we'll revolutionize the way our customers experience shopping, making them wonder how they ever lived without Coupang.

# About the Team- This position joins the team at Toss Commerce, which is developing a system for real-time voice interactions with customers using AI.- Unlike text chatbots, this involves actual phone conversations where customers may interrupt, change context suddenly, or leave pauses. The AI must manage these situations seamlessly.- We apply cutting-edge AI technologies such as LLM, Multi-Agent systems, Automatic Prompt Optimization (APO), and LLM-as-Judge in the demanding environment of live customer calls, validating our approaches with real data every day.- Real-time voice interactions combined with LLM are still uncharted territory in the industry. Our team goes beyond just reading papers; we create solutions directly from actual call data. # Responsibilities- Design and implement core features for a voice-based AI agent, including managing conversation flow, state management, tool calling, and safety measures.- Integrate Speech-to-Text (STT) and Text-to-Speech (TTS) to create a production-level voice user experience (UX) aimed at low-latency, high-quality interactions.- Develop and manage experimental routines that enhance the overall quality of the agent, focusing on prompts, context configuration, LLM as a Judge, and offline/online experiments.- Explore innovative approaches to challenges that are difficult to solve with traditional methods using large language models (LLM), Retrieval-Augmented Generation (RAG), and multimodal models.- Investigate possibilities for applying AI in areas that have not yet been clearly defined, in addition to problem-solving.- Design solutions that consider not only technical sophistication but also business applicability and sustainability. # Desired Candidate- Experience in solving complex problems using advanced AI technologies such as Multi-Agent systems, LLM, RAG, and multimodal models is essential.- Proficiency in integrating diverse data types (text, images, structured data) to design and experiment with models is required.- A keen interest and ability to explore and technically define new problems is preferred.- Experience leading the complete process from problem definition to model design, experimentation, and quantitative evaluation is advantageous. We seek someone who can systematically enhance quality based on datasets, metrics, and guardrails.- Familiarity with the latest AI ecosystem tools such as PyTorch, Hugging Face Transformers, and LangChain is necessary.- Experience designing with consideration for not just technical experiments but also service applicability and scalability is a plus.- Understanding trade-offs between quality, latency, and cost, with demonstrated ability to make context-appropriate choices and optimizations, is highly valued. # Resume Tips- Rather than simply listing modeling techniques, it's more impactful to showcase specific improvements and their effects.- Highlight experiences where you achieved meaningful results through experiments and iterative improvements in varying data conditions or constraints.- It would be beneficial to illustrate your role in collaborative processes and how you contributed to problem-solving beyond technical aspects. # Joining Toss- Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance- The job interview will include in-depth technical discussions and ML system design. # A Note to Potential Colleagues> “Solving complex problems with AI is just the beginning.What we truly focus on is re-examining the problems themselves and transforming them for the better.”> - It's not just about feeding clean data into models; it's more about contemplating how to technically resolve issues that are yet to be defined.> - We begin every time with, “Do we really need to solve this with modeling?” and engage in a process of re-evaluating what the most impactful approach might be.> - We can design a new flow centered around AI, rather than just attaching AI to tasks previously handled manually by service or operations teams.

Join us in creating an exceptional shopping experience within the Toss Commerce domain, where customers can easily discover products and enjoy seamless shopping.Toss Commerce is dedicated to providing users with an enjoyable shopping experience within a financial services-based super app.We utilize machine learning-driven recommendations and advertisements to offer customers new discoveries while fostering revenue growth and operational efficiency for sellers.Our mission is to connect quality products with customers naturally, creating a symbiotic growth environment for customers, sellers, and the platform.As a Technical Product Owner, you will:Establish quarterly objectives for your product and collaborate across teams to achieve them.Identify and resolve technical challenges within the commerce domain, including search, recommendations, advertising, and AI.Design and operate systems that provide optimal exploration experiences for customers and performance metrics for sellers, leveraging your technical expertise.Your responsibilities will include:Defining issues within the search, recommendations, and advertising systems, driving solutions forward.Ensuring complex technical tasks such as modeling, ranking, bidding, pacing, and real-time serving contribute meaningfully to the business.Taking responsibility for quality metrics like CTR, CVR, and ROAS, as well as performance metrics like latency and availability.Leading your team while pushing for cross-functional execution to completion.We are looking for individuals who:Have experience with large-scale search, recommendation, advertising, and AI systems.Possess a deep understanding of architectures related to recommendations, advertising, AI, and search.Can define complex technical problems and connect them to product solutions.Can lead and execute across diverse organizations, even without formal authority.Important notes:We will review your application to find the most suitable position based on your skills and experiences.If you have specific areas of interest, feel free to apply for individual postings listed above.Rest assured, you can apply comfortably as this posting covers all positions without duplication.How to craft your resume:Clearly outline your problem definitions, hypothesis creation, execution, verification, and results for each product, service, or project.Highlight not just your tasks but also the insights and results you achieved through your contributions.Your journey to join Toss:Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding.

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

# 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.

At Coupang, we are dedicated to delivering an extraordinary experience to our customers, who often ask, “How did we ever live without Coupang?” Our passion for making shopping, dining, and daily living easier has driven us to disrupt the multi-billion-dollar e-commerce industry from its roots. As one of the fastest-growing e-commerce platforms, we have earned a reputation as a dominant and dependable player in South Korea's commerce landscape. We pride ourselves on merging the agility of a startup culture with the robust resources of a large global public company. This unique blend empowers us to accelerate our growth and introduce innovative services at an unprecedented pace. Our team is filled with entrepreneurial spirits, constantly exploring new initiatives and innovations. At Coupang, you will witness your personal growth alongside that of your colleagues, your team, and the company. Our mission is to shape the future of commerce, pushing the limits of what is possible to tackle challenges and redefine traditional trade-offs. Join Coupang today to craft an unparalleled experience in this always-on, high-tech, and hyper-connected world. Role Overview: As a pivotal member of the Growth Engineering team, your primary objective will be to enhance the number of transacting customers while simultaneously increasing their purchase frequency and lifetime value. You will develop and refine core platforms and services that drive Coupang's growth and marketing efficiency. Our portfolio includes various platforms such as the Search Advertising Platform, Affiliate Platform, Display Targeting & Re-targeting Platform, CRM, Audience Platform, and Push Marketing Platform, among others. Opportunities for machine learning span areas like targeting, personalization, product & offer recommendations, budget optimization, real-time bidding, and fraud detection. In your role as a Staff Engineer, you will lead the architecture and development of a next-generation CRM platform, ensuring it provides comprehensive campaign management, from planning and target customer selection to promotion optimization and performance measurement. You will design a real-time decision engine to empower downstream services across the Growth Engineering ecosystem. Your technical expertise will play a crucial role in enhancing Coupang’s data-driven capabilities, aligning innovation with our strategic business goals.