Server Developer - Messaging Platform

The Toss Server Team builds and maintains the core systems that keep Toss services running smoothly. As a Server Developer focused on the Messaging Platform, the work centers on supporting reliable communication across a range of customer touchpoints and affiliated companies. This role sits within the Platform Chapter, which develops shared libraries, gateways, and messaging systems. The team also maintains frameworks for logging, metrics, and other common features, enabling fast and stable service development. There is flexibility to move between chapters (Product, Platform, Productivity) after joining, matching evolving skills and interests. What you will do Build and manage messaging systems for customer communications, including push notifications, alerts, and emails. Support experimental systems for A/B testing within Toss services. Implement unified messaging solutions across affiliated companies, such as banks and securities firms. What we look for Experience designing, developing, and operating messaging systems. Background in building highly available and scalable systems. Ability to identify and resolve operational challenges in complex environments. Technologies in use Kotlin, Java, Spring MVC, Spring Boot JPA/Hibernate, MySQL, MongoDB, Redis, Kafka ELK, Prometheus with Thanos, Grafana Application tips Describe your experience with Toss's technology stack and the scale of traffic you have handled. Share examples of optimizing performance for high-traffic applications. If you have worked in mission-critical environments and taken responsibility for reliable services, highlight those experiences. Hiring process Application submission First round technical interview (30 minutes) Second round technical interview Cultural fit interview Reference check Salary negotiation Final acceptance and onboarding

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.

Welcome to the journey of joining the Daangn team!At Daangn, we strive to create an environment where individuals can grow alongside the company's development.Our recruitment team is here to assist you in making the moment of collaborating with amazing colleagues a joyful reality. Introducing the Advertising TeamThe Advertising Team is responsible for the core advertising services that drive Daangn's revenue model. We operate an advertising platform targeting Daangn's 19 million monthly active users (MAU), providing effective advertising opportunities for both small businesses and large enterprises through localized advertising solutions. Our ongoing improvements can significantly impact advertisers' performance and Daangn's revenue, as we continuously evolve our services through data-driven decision-making and constant experimentation. The Advertising Team plays a pivotal role in balancing user experience with advertising effectiveness, ensuring we deliver useful and relevant ads while preserving Daangn's core values of community communication and transaction experiences. We develop various advertising formats and targeting options, leveraging machine learning technology to optimize advertising performance. Additionally, the team participates in crucial decision-making processes from an organizational perspective. Since ads are displayed across multiple app surfaces, we must consider not only ad performance but also the overall health of the service and user satisfaction. Therefore, we adopt a comprehensive approach that considers the needs of advertisers, user experience, and our business objectives. Within the Advertising Team, you'll engage in diverse tasks such as developing new advertising products, enhancing the advertising platform, analyzing and optimizing ad performance, and managing advertiser relationships. If you want to make an impact in a rapidly evolving advertising market grounded in innovative ideas and analytical thinking, the Advertising Team is the perfect choice for you. Learn more about the Daangn Advertising Team!Your ResponsibilitiesGrow into an expert handling large-scale advertising traffic.Daangn Market is a massive platform with 19 million MAU. Operating an advertising system reliably in this large-scale environment presents both challenges and opportunities. By joining the Advertising Team, you will work with systems that handle hundreds of millions of ad requests daily. You will learn how to respond to various issues that arise, enhancing your skills in building high-availability systems and practical problem-solving. Specifically, in the Serving Team, you will work with a Real-Time Bidding (RTB) system that demands millisecond-level response times, allowing you to acquire skills in designing and implementing ultra-low latency distributed systems. In the DSP Team, you will develop performance optimization and scalable architecture for processing large volumes of advertising data.Gain experience in data-driven decision-making and optimization.As a developer in the Advertising Team, you will handle vast amounts of user and ad performance data. You will have the opportunity to build and optimize pipelines for efficiently collecting, processing, and analyzing this data, enhancing your skills in big data processing technologies, data warehousing, and real-time data streaming. Additionally, you will gain hands-on experience applying machine learning models to real advertising systems, utilizing AI/ML technologies in areas such as user targeting, ad performance prediction, and real-time bid price determination to continuously improve the advertising system.Experience solving technical challenges in a continuously growing service.Daangn is in a constant state of growth. As such, the advertising system is continually expanding, with new features being added. You will experience evolving the system to accommodate various changes such as new ad product launches, expanded targeting options, and improved ad effectiveness measurement. For example, in the DSP Team, you'll be developing logic for new ad formats, integrating new data sources, and in the Serving Team, implementing new ad display methods, tackling various challenges that arise. Through this process, you’ll be able to learn about and apply the latest technological trends, significantly enhancing your technical capabilities.Design and operate microservices architecture directly.The Advertising Team adopts a microservices architecture, allowing you to design and implement independent microservices across different domains such as DSP, DMP, and recommendation systems. This experience will enable you to apply core concepts of microservices architecture, including inter-service communication, API design, and distributed transaction handling.

Join our innovative team at daangn as a Backend Software Engineer, where you'll be responsible for developing robust backend systems that power our lessons and tutoring services. You will work with cutting-edge technologies to enhance user experience and drive our mission forward.

Welcome to Your Journey with daangn!At daangn, we strive to cultivate an environment where individuals can grow alongside the company as we evolve.The daangn recruitment team is here to assist you in reaching moments of meaningful collaboration with wonderful colleagues. Introducing the Identity Service TeamThe Identity Service team is responsible for managing membership and authentication at daangn. We develop a range of features related to authentication and user management to ensure that all customers can use our services safely and smoothly. We aspire to create a world where every local service is connected through daangn, aligning our growth with scalable and secure membership services. We continuously explore ways to provide a better user experience while safeguarding personal information and ensuring customer safety.How the Identity Service Team OperatesHealthy Conflicts for Better OutcomesWe embrace constructive disagreement for improved results. By respecting each other and engaging in open discussions, we make better decisions.Prioritizing Purpose Over MeansWhat we aim to achieve is of utmost importance. We select the appropriate means aligned with our goals and remain vigilant to ensure that means do not overshadow our purpose.Thinking Beyond the Team for Company-Wide ImpactWe consistently consider ways to create greater value across the organization, moving beyond simple problem-solving.Vision for Present and Future GrowthWe focus on sustainable choices that remain viable even after significant growth, not just immediate solutions. Technologies Used by the Identity Service TeamGo, gRPC, gRPC-GatewayMySQL, Redis, KafkaKubernetes, Istio Daangn Tech Meetups#1 Separating daangn's Membership System into Microservices#2 Life After Separation into MSA: Growth of Go Server#3 Replacing the Lock Mechanism of a Running Car: Centralization of Authentication Systems Daangn Tech Blog Link to Blog

Overview Coupang is dedicated to astonishing our customers. We thrive when we hear feedback like, “How did we ever live without Coupang?” Our relentless pursuit of making shopping, dining, and living easier than ever is driving us to disrupt the multi-billion-dollar e-commerce industry from the ground up. As one of the fastest-growing e-commerce companies, we have established a formidable reputation as a dominant and trustworthy force in South Korean commerce. We take pride in combining the agility of a startup with the resources of a major global public company. This unique blend empowers us to maintain our rapid growth trajectory and launch innovative services swiftly. Our entrepreneurial spirit fosters an environment rich with opportunities to spearhead new initiatives and innovations. At Coupang, you will witness continuous growth—both personally and professionally—alongside your colleagues, your team, and the company. Our mission to shape the future of commerce is tangible. We challenge the limits of what is possible, tackling problems and overcoming traditional trade-offs. Join Coupang today and help us create extraordinary experiences in this ever-connected, high-tech world. Role Summary The Global Operations Technology (GOT) division is integral to ensuring Coupang can deliver products to customers within hours of placing their orders. GOT is committed to revolutionizing logistics through the development of an efficient delivery network at unprecedented scale and speed. As a Senior Staff Backend Engineer within GOT, you will harness advanced algorithms to enhance the customer experience by guaranteeing timely deliveries, even during peak shopping seasons. We seek a tech-savvy professional who can shape the technological direction across multiple teams, leveraging deep industry expertise and utilizing statistical and machine learning techniques to provide significant value to our customers. The ideal candidate will be pragmatic, resourceful, and ready to tackle challenges that may appear insurmountable, with a proven history of executing impactful projects. Key Responsibilities Lead the architectural design of Fulfillment Technologies aimed at scalability, future extensibility, and reliability. Develop and align with stakeholders on an appropriate roadmap and future technology direction for the Fulfillment Technologies team. Identify and mitigate technical challenges and organizational blockers. Break down complex problems into straightforward, actionable components.

Welcome to Daangn's Team Journey!At Daangn, we strive to create an environment where individuals can grow alongside the company's expansion.The Daangn recruitment team is here to assist you in reaching a moment where you can engage in thoughtful discussions with fantastic colleagues. Introducing the Location Intelligence TeamThe Location Intelligence Team plays a crucial role in managing and analyzing various location and spatial data, which enriches our services as we transition into a local super app. We handle complex, large-scale spatial data securely and efficiently, pursuing a sustainable and scalable platform. We are looking for someone to help tackle the diverse technical challenges that arise as we continuously develop services that grow and expand globally. Check out our Tech Meetup Presentation Videos: How far does our neighborhood narrow down? Exploring our neighborhood through natural boundaries Serving complex spatial data quickly and efficientlyYour ResponsibilitiesDesign, develop, and maintain Daangn's neighborhood certification and area management systems, ensuring stable platform services that other internal microservices rely on.Enhance connections among Daangn users and explore ways to create new connections.Establish policies and build shared frameworks to ensure Daangn operates reasonably as a location-based service.Create a large-scale data system for securely and efficiently storing and utilizing various location information.Who We Want to Work WithIndividuals who enjoy defining problems in unstructured situations and learning from leading the resolution process.Developers who consider writing tests, code reviews, and documentation as core processes and actively practice them.Those who understand and can utilize relational database modeling, indexing, and transaction processing.Individuals who comprehend asynchronous programming and can derive solutions for concurrency and consistency issues.People with a fundamental understanding of REST API or RPC communication structures and practical experience.Team players who actively communicate to improve services based on logical reasoning and mutual respect.Bonus Points for Candidates Who HaveExperience developing with Golang.Experience with services based on microservices architecture.Knowledge of or experience with large-scale spatial information and user location data pipelines.Knowledge of Geographic Information Systems or related project experience.Additional InformationFor full-time hires, there is a 3-month probation period.Individuals with disabilities or veterans are given preference in the hiring process in accordance with the laws related to employment promotion and vocational rehabilitation.Please submit your portfolio or resume in PDF format, indicating your actual contributions per project.Live coding tests and backend development-related questions will be part of the video interview.There will be a system design test in the job interview.How to Join Us1. Document screening → 2. Video interview (live coding test) → 3. Job interview (system design) → 4. Culture fit interview and reference check → 5. Negotiation of terms → 6. Final offer...

Join Our Team at AirwallexAt Airwallex, we are redefining the financial landscape for global businesses through our integrated payment and financial solutions. With a unique blend of proprietary technology and infrastructure, we empower over 200,000 businesses—including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN—to seamlessly manage their accounts, payments, and treasury on a global scale.Founded in Melbourne, Airwallex boasts a dynamic team of over 2,000 innovative tech professionals across 26 offices worldwide. Valued at $8 billion and backed by prestigious investors such as T. Rowe Price, Visa, and Mastercard, we are at the forefront of developing the future of global payments. If you’re ready to embark on the most ambitious journey of your career, we invite you to join us.What We Are Looking ForWe value ambitious creators with a founder-like spirit who seek to make a real impact while accelerating their learning and taking ownership of their work. If you possess strong skills in software engineering, a sharp analytical mindset, and are driven by our mission and operating principles, we want you on our team. You thrive in a fast-paced environment, have a curious mindset, and make judicious decisions backed by thorough analysis.As a humble and collaborative individual, you have the ability to turn innovative ideas into tangible products and are proficient in using AI to enhance productivity. Here, you’ll face complex challenges alongside exceptional teammates while advancing your career in the evolving landscape of global banking. If this resonates with you, let’s create the future together.About the GTPN TeamThe Global Treasury and Payment Network (GTPN) team is central to Airwallex’s payment infrastructure. As our inaugural product and the largest revenue generator, GTPN plays a crucial role in enhancing customer experiences. Operating at the crossroads of traditional and modern finance, we are committed to expanding and fortifying our global treasury and payment network, while delivering innovative financial products on a solid financial foundation.We are a truly global and cross-functional engineering team, with talented engineers located in established and emerging tech hubs including the US, Singapore, Hong Kong, and Shanghai. As we scale our operations, we are on the lookout for passionate Senior Software Engineers to join our ranks. Collaborate with us to tackle exciting challenges and drive innovation in our industry.

Welcome to the Journey of Joining the Daangn Team!At Daangn, we strive to create an environment where individuals can grow alongside the company as it evolves.Our recruitment team is here to help you reach that moment of engaging in meaningful discussions with wonderful colleagues. Introducing MyKarrot Task ForceThe MyKarrot Task Force is dedicated to transforming the 'My Karrot' tab into a pivotal space for enhancing user engagement across the Daangn platform. Users tend to navigate to the 'My Karrot' tab after taking actions, and our team believes it can evolve from a simple user page into a personalized hub that facilitates their subsequent actions.Daangn is focused on creating diverse experiences centered around hyper-local services, including secondhand trading, part-time jobs, real estate, and community interactions. While each service has its unique growth phase and strategy, they are all interconnected within the context of users' neighborhood lives. Our team is committed to bridging these services with user activities, presenting the right actions and information at the perfect moments.Long-term, we envision 'My Karrot' as a space where relationships and transactions build, making it easier for users to initiate their next activities. The primary goal of the MyKarrot Task Force is to create a more organic connection among various services within Daangn, enabling users to seamlessly continue their actions.ResponsibilitiesDesign and develop the server for the Server Driven UI (SDUI) that comprises the 'My Karrot' tab.Create an environment for experimenting with the 'My Karrot' tab UI based on user behavior patterns.Develop systems that connect various services' contexts with user activities to enhance the 'My Karrot' experience.Decompose existing legacy services related to 'My Karrot' and gradually transition traffic.We are looking for candidates who have:3+ years of backend development experience or equivalent engineering capabilities.Experience in designing and operating services based on Kotlin, Spring Boot, and RDBMS.A user-centric mindset for product development.Self-motivation, excellent communication skills, and the ability to execute tasks promptly.Additional Preferred QualificationsExperience in identifying problems and implementing improvements by analyzing user behavior data and metrics.Experience in leveraging AI/LLM to enhance development productivity or attempt novel problem-solving methods.Additional InformationFull-time positions include a 3-month probation period.We prioritize candidates with disabilities and veterans in accordance with the 'Act on the Promotion of Employment for the Disabled' and 'Act on the Honorable Treatment and Support of Veterans'.Application Process1. Document screening → 2. Video interview → 3. Job interview → 4. Culture fit interview and reference check → 5. Compensation negotiation → 6. Final acceptance and onboardingGo to the Daangn joining journey guide()

Welcome to the Journey of Joining the Daangn Team!At Daangn, we strive to create an environment where individuals can grow alongside the company as it evolves.Our recruitment team is here to assist you in the moments where great colleagues can spark joyful challenges. Introducing Local BusinessOur Local Business team is dedicated to creating services that connect local shop owners with their neighbors. We provide touchpoints for Daangn users to discover local store information more effectively while equipping shop owners with tools to engage with local customers.The Order Experience team helps neighbors utilize local stores more conveniently and reasonably. Through our pickup (takeout orders) and QR order (table orders) products, we connect offline stores to the online world, offering neighbors savings and convenience while ensuring store owners gain loyal customers and increased sales.We are not just creating a simple ordering system; we are implementing the 'warmest transaction experience in our neighborhood' through technology. This process fosters a sustainable local ecosystem that energizes stores, neighbors, and the community at large.Key ResponsibilitiesDesign, develop, and operate the core backend systems for Daangn's QR order and pickup products.Handle various domains such as business profiles, orders, payments, menus, and points, generating suitable outputs for product stages and evolving them into sustainable systems.Ensure stable integration with POS, PG, and external systems.Collaborate closely with product planning, design, frontend, and business development teams to enhance product quality.Ideal CandidateExperience in designing and operating services based on Kotlin, Java, and the Spring Framework.Solid foundation in RESTful API design, DB modeling, and cache/transaction management.Proactive, effective communicator, with the ability to execute quickly.Ability to understand business objectives and connect technical decisions with product impact.A passion for receiving and providing feedback to foster mutual growth with colleagues.Preferred QualificationsAbility to define problems and execute solutions swiftly, even in uncertain environments.Experience operating real services in F&B, O2O, or payment/order systems.A desire to grow with a product in its early stages while contributing to technical foundations and organizational culture.Strong understanding of distributed processing systems or microservices architecture.Interest in the local commerce ecosystem.Additional InformationFor full-time positions, there is a 3-month probation period.In accordance with the 'Act on the Promotion of Employment for Persons with Disabilities' and the 'Act on the Honorable Treatment and Support of Veterans', individuals with disabilities and veterans are given preference during the hiring process.Application Process1. Document screening → 2. Video interview → 3. Job interview → 4. Cultural fit interview and reference check → 5. Negotiation of terms → 6. Final acceptance and onboarding. Click here for the Daangn Joining Journey Guide ()

Role Overview Tosscareers is hiring an AIOps Platform Engineer in Seoul. This role focuses on building and improving AIOps platforms that support IT operations. The work centers on integrating AI with operations to improve performance and reliability. What You Will Do Work with teams from different disciplines to design and develop AIOps solutions Implement platforms that help automate and optimize IT operations Contribute technical expertise to projects that connect AI tools with operational workflows Support the stability and efficiency of IT systems through AI-driven approaches Location This position is based in Seoul.

Speechify helps over 50 million people turn reading materials, PDFs, books, Google Docs, news articles, and websites, into audio they can listen to anywhere. Our products span iOS, Android, Mac, Chrome Extension, and Web App. Google named us Chrome Extension of the Year, and Apple awarded us the 2025 Design Award for Inclusivity. Our team of nearly 200 works fully remotely, representing backgrounds from Amazon, Microsoft, Google, Stripe, Vercel, Stanford, and more. We value diverse experience and a collaborative approach. There is no central office; everyone contributes from wherever they are. Role overview The Platform Software Engineer will join the Platform team to build and maintain backend services. These systems support payments, analytics, subscriptions, product development, text-to-speech features, and external API integrations. The work directly shapes the reliability and reach of Speechify’s core products. This position calls for someone who thinks strategically and cares about delivering strong user experiences. The team operates with a flat structure, leadership comes from technical skill and consistent results, not job titles. What matters here Solid work ethic and follow-through Clear, effective communication Drive to compete and improve Interview process The process includes several technical interviews, typically completed within one week. Location This role is based in Seoul, South Korea.

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!

Founded in 2006 by passionate gamers, Riot Games is committed to crafting player-centric games that resonate with audiences worldwide. Our flagship title, League of Legends, launched in 2009, has since become a global phenomenon, captivating over 100 million players each month. We continuously strive to enhance the League of Legends experience, placing players at the heart of our community. We are on the lookout for humble yet ambitious professionals, sharp-minded individuals who can share their insights while we reciprocate with our own. If you have a serious passion for gaming, thrive on innovation, and are unafraid to challenge the status quo, we want to hear from you! As the Manager of Software Engineering in the Publishing Engagement team within the Publishing Platform, you will lead engineers dedicated to designing, developing, and maintaining platform services that facilitate game content delivery and enrich player experiences across various games and platforms. Collaborating with game developers, central tech groups, and legal and business teams in Korea, you will ensure high-quality standards while optimizing operations for players both locally and globally. Your extensive knowledge of technical systems will guide the team in building, operating, and scaling our services. You will influence critical technical decisions, oversee documentation and process enhancements, and mentor engineers in delivering integrated, multi-platform gaming experiences. Your leadership will cultivate an environment of clarity, discipline, and agility, empowering the team to make a significant impact. You will report directly to the Senior Manager of Software Engineering, who supervises multiple teams under the Meta Game Services initiative.

Who We AreJoin us in setting global standards for video understanding AI! Twelve Labs is at the forefront of developing advanced AI models tailored for video analysis, search, summarization, and insights derived from vast video datasets.Our models are utilized by the largest sports leagues to swiftly and accurately highlight key moments in extensive game footage, providing a hyper-personalized viewing experience. In South Korea, integrated control centers use our technology to efficiently navigate CCTV footage in crisis situations, while major broadcasters and studios worldwide leverage our models for content creation aimed at billions of viewers.As a Deep Tech startup with offices in San Francisco and Seoul, Twelve Labs has been recognized as one of the top 100 AI startups globally by CB Insights for four consecutive years. We have successfully raised over $111 million from prestigious venture capital firms and corporations, including NVIDIA, NEA, Index Ventures, Databricks, and Snowflake. Our unique AI model developed in Korea is exclusively available via Amazon Bedrock. We are committed to creating innovative products with outstanding colleagues and growing alongside our global clientele.Twelve Labs operates based on the following core values:A commitment to honesty and reflection about ourselves and our teamResilience and humility, embracing failure and feedbackA dedication to continuous learning and enhancing the team's capabilitiesIf you enjoy solving challenging problems and growing through the process, the opportunity is here at Twelve Labs.About the TeamThe Console team is responsible for creating a B2B SaaS platform that connects our proprietary AI models with customers. Currently, we offer our technology through API, SDK, and the web application called Playground, catering to a diverse range of clients from individual developers to large enterprises. Moving forward, we will establish a common foundation that provides a consistent data layer across all products, enabling them to operate seamlessly on our platform. Our team, based in San Francisco and Seoul, collaborates as one unit, leveraging diverse backgrounds to create remarkable products.Our team values autonomy and open-mindedness. Every member is encouraged to set and pursue their goals, fostering a culture of free discussion and suggestions for product improvement. Engineering collaborates closely with product managers from the design phase to ensure high-quality system architecture, with peer reviews enhancing the integrity of our code.About the RoleAs part of the Console team, the Staff Backend Engineer plays a crucial role in developing the backend systems that underpin our products, enabling users from individual developers to large enterprises to effectively utilize our video AI models through APIs, SDKs, and a Web Console. This position involves designing core systems for authentication, billing, organizational management, and a unified data layer that supports all products. Beyond merely implementing features, this role includes setting the technical direction for the team and spearheading solutions to complex challenges.You will work closely with product managers, frontend engineers, ML engineers, and various teams to design and implement systems that are both user-friendly and scalable.You may be a good fit if you haveOver 8 years of experience in backend engineeringExperience in a startup or fast-paced environment, with a proven ability to lead technical decisions and manage projects under uncertaintyDeep understanding of backend languages such as Go and Java/Kotlin, with experience designing and operating production-level systemsProficiency in system architecture design and scalability considerations

Company OverviewCoupang exists to deliver extraordinary customer satisfaction. When customers say, "How did I live without Coupang?" we know we have fulfilled our mission. With a singular commitment to making shopping, dining, and everyday life easier for customers, Coupang is driving innovation across the multi-billion-dollar e-commerce industry. As one of the fastest-growing e-commerce companies, Coupang has established a unique position in the domestic commerce landscape and built customer trust.Coupang prides itself on being a globally listed company rooted in a startup culture. This agility, dating back to our founding, fuels our ability to continuously launch new services and expand our business. Every employee at Coupang is given the opportunity to embody an entrepreneurial spirit, driving new innovations and initiatives. The boldness to dive into work without hesitation and achieve results is at the heart of how we operate. At Coupang, you will witness the daily growth of yourself, your colleagues, your team, and the entire company.All Coupang employees are genuinely committed to our mission of shaping the future of commerce. We tackle customer problems head-on, challenge traditional beliefs, and push the boundaries of what is possible. If you seek an incredible working experience in a high-tech, always-on, hyper-connected world, join Coupang now.

Coupang is revolutionizing the shopping experience, aiming to amaze each customer from the moment they launch the Coupang app until their order is delivered to their doorstep. With a robust end-to-end e-commerce and logistics network, coupled with a passionate commitment to customer-centricity, Coupang has eliminated the trade-offs between speed, selection, and price. We proudly offer incredibly fast shipping on millions of products, including fresh groceries, delivered within hours across the nation, 365 days a year. This is our promise to millions of customers in Korea, a nation that boasts one of the largest and fastest-growing e-commerce landscapes in the world. [About the Team]As a vital part of the Ecommerce Engineering team, our mission is to deliver exceptional customer experiences, achieve world-class service excellence, and drive hyper-growth in revenue. We accomplish this by developing scalable and extensible architecture to support rapid business expansion, creating high-performance and resilient backend systems to manage increasing customer demands, and implementing stable, fault-tolerant mechanisms that ensure an unmatched customer experience. Our vision is to craft disruptive products and resilient platforms for customers, leveraging world-class talent and cutting-edge technology.

Join our dynamic team at Coupang where we are driven by a passion for tackling complex real-world challenges and creating innovative solutions that enhance the lives of millions. As a Backend Engineer, you will collaborate with talented developers, fostering a culture of knowledge sharing and rapid innovation. Engage in building cutting-edge in-house technologies, revolutionizing mobile architecture, and pushing the boundaries of machine learning and deep learning. Together, we will create a world where our customers wonder, 'How did we ever live without Coupang?'

About HopaeAt Hopae, we are dedicated to creating the most reliable digital identity platform in the world—one that is private, secure, and designed for real-world applications.We believe that individuals should have control over their own identities, free from outdated systems and centralized control.Our innovative technology facilitates instant, privacy-focused verification for users and businesses globally, spanning sectors such as fintech, credentials, supply chain, and gaming.Supported by leading global investors, Hopae operates not only in Seoul but also in Paris and San Francisco, harnessing a diverse team of talent from over 10 nationalities.We prioritize speed, global thinking, and the development of products that will shape the future of identity. Why You’ll Love Working HereGlobal DNA: Collaborate with outstanding professionals across Seoul, Paris, and San Francisco.High Impact: Contribute to technology that is redefining trust and identity on a global scale.Ownership Culture: Experience a work environment with no micromanagement—where trust and accountability are paramount.Elite Standards: Thrive in a fast-paced environment where learning and growth are encouraged alongside world-class colleagues.Inclusive & Respectful: Join a team with over 10 nationalities, bringing diverse perspectives united by a common vision.Growth Mindset: Benefit from mentorship opportunities, leadership visibility, and lifelong learning. Your ResponsibilitiesAs a Backend Engineer, your coding expertise will underpin the security and connectivity of digital identities for users around the globe.Design and Develop Global Authentication Platform: Take charge of building and maintaining the core backend systems and high-availability infrastructure for the hConnect platform.Integrate with Diverse Identity Systems: Create and enhance modules that connect with national electronic ID (eID) systems and various identity services globally.Build Scalable Systems: Ensure system stability while progressively enhancing capabilities to accommodate future traffic growth and feature expansions.Design Flexible and Scalable APIs: Develop and maintain robust APIs for seamless integration with both internal services and external partners.Foster a Strong Code Culture: Collaborate with your team to cultivate a culture of quality code.

About Tridge:Tridge has been addressing the information asymmetry and inefficiencies in global agricultural trade through data and technology. Our next chapter involves expanding the Vertical Intelligence we've accumulated over the past decade into a global supply chain network.We create exclusive industry intelligence (Vertical AI) based on vast domain data,Automate interactions within the buyer-seller network (Horizontal AI), andBuild a 'global supply chain OS' that enables transactions to scale on their own.Despite facing challenging environments and practical constraints, we have continued to push forward, resulting in stronger execution and clearer direction. We have gained a sharper understanding of what matters most and how to execute effectively.The problems Tridge seeks to address remain significant, which is why we are looking for great colleagues. To sustainably solve market asymmetries and imbalances that humanity has long struggled with, we need teammates who can think deeply and execute diligently.