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Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been at since our inception. We are all entrepreneurial surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Job Overview: As a Staff Software Engineer, Backend, you will work on distributed systems, data processing pipelines and building next generation platform and products. You will help the team to bring industry best practices in software development and operations while improving their engineering skills to build pioneering e-commerce experience in new global markets. Working closely with a group of engineers in multiple geographic locations, you’ll solve challenge problems at scale with high reliability. Your efforts will directly have an impact on tens of millions of users every single day! Key Responsibilities: Drive the highest quality of architecture and design of system. Draw a roadmaps and vision for the scalable and robust growth of the product. Collaborate with other engineering teams to make the platform open and extensible to unlock innumerable opportunities for innovations. Align with stakeholders and lead engineers on mission critical projects. Decompose complex problems into simple, straightforward solutions. Leverage knowledge of internal and industry best practices in design. Deep-dive and handle critical system issues. Collaborate with other teams to make the platform open and extensible to unlock innumerable opportunities for innovations. Qualifications: Bachelor's degree and/or master’s degree in computer science or equivalent. Minimum 8 years of experience working on software design and development in Java,Python. Hands-on experience with designing, building, and deploying scalable, high available systems. Large system architecture design and development experience. Experience with cloud computing with AWS. Experience of developing container-based testing environment. Experience with Java / IntelliJ / Spring environment. Type of work model: · Hybrid - Our Hybrid work model: Coupang hybrid work model is designed to enable a culture of collaboration that acts a catalyst to enrich the experience of employees. Employees are required to work at least 3 days in the office per week, with the flexibility to work from home 2 days a week, depending on the role requirement. Some businesses may require more time in office due to nature of work. Details to consider · Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice · Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been at since our inception. We are all entrepreneurial surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Job Overview: As a Staff Software Engineer, Backend, you will work on distributed systems, data processing pipelines and building next generation platform and products. You will help the team to bring industry best practices in software development and operations while improving their engineering skills to build pioneering e-commerce experience in new global markets. Working closely with a group of engineers in multiple geographic locations, you’ll solve challenge problems at scale with high reliability. Your efforts will directly have an impact on tens of millions of users every single day! Key Responsibilities: Drive the highest quality of architecture and design of system. Draw a roadmaps and vision for the scalable and robust growth of the product. Collaborate with other engineering teams to make the platform open and extensible to unlock innumerable opportunities for innovations. Align with stakeholders and lead engineers on mission critical projects. Decompose complex problems into simple, straightforward solutions. Leverage knowledge of internal and industry best practices in design. Deep-dive and handle critical system issues. Collaborate with other teams to make the platform open and extensible to unlock innumerable opportunities for innovations. Qualifications: Bachelor's degree and/or master’s degree in computer science or equivalent. Minimum 10 years of experience working on software design and development in Java,Python. Hands-on experience with designing, building, and deploying scalable, high available systems. Large system architecture design and development experience. Experience with cloud computing with AWS. Experience of developing container-based testing environment. Experience with Java / IntelliJ / Spring environment. Type of work model: · Hybrid - Our Hybrid work model: Coupang hybrid work model is designed to enable a culture of collaboration that acts a catalyst to enrich the experience of employees. Employees are required to work at least 3 days in the office per week, with the flexibility to work from home 2 days a week, depending on the role requirement. Some businesses may require more time in office due to nature of work. Details to consider · Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice · Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview Rocket Growth is the 2P marketplace at Coupang. Coupang’s Rocket Growth team is dedicated to providing our customers with the best selection at the lowest prices while ensuring utmost convenience for our sellers. We are seeking a Staff Back-end Engineer to join our mission. In this fast-paced environment, you will collaborate with a team of smart and passionate engineers to design and implement systems that meet the needs of our growing business. You will have direct ownership of new features aimed at enhancing the scalability, reliability, availability, extensibility, and performance of our platform. We prioritize delighting customers while building high-quality software and seek candidates with a proven track record in designing and implementing large-scale distributed systems. Basic Qualifications 7+ years of professional software development experience, with focused on large-scale back-end systems and microservices architectures. Proven track record of designing, building, and operating high-throughput, low-latency distributed systems in production (handling strict SLAs/SLOs for availability and durability). Deep technical mastery in at least one modern back-end language (e.g., Go, Java, Python, C++, or Rust) and strong proficiency with relational (e.g., PostgreSQL, MySQL) and non-relational databases (e.g., Cassandra, Redis, DynamoDB). Demonstrated experience establishing architecture paradigms, API standards (REST, gRPC, GraphQL), and technical strategy across multiple engineering teams. Hands-on experience with cloud infrastructure (AWS, GCP, or Azure), container orchestration (Kubernetes), and modern CI/CD pipelines. Preferred Qualifications Expertise in event-driven architectures and distributed messaging platforms (e.g., Apache Kafka, RabbitMQ, Pulsar). Proven history of leading major technical turnarounds, such as zero-downtime database migrations, legacy system modernization, or major infrastructure cost-optimization initiatives. Strong background in observability and reliability engineering (distributed tracing, OpenTelemetry, chaos engineering, incident management leadership). History of active technical mentorship—successfully growing Senior (L5) engineers into Lead/Staff roles. Pay & Benefits Our compensation reflects the cost of living across several US geographic markets. At Coupang, your base pay is one part of your total compensation. The base pay for this position ranges from $152,000/year in our lowest geographic market to $261,000/year in our highest geographic market. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience. General Description of All Benefits Medical/Dental/Vision/Life, AD&D insurance Flexible Spending Accounts (FSA) & Health Savings Account (HSA) Long-term/Short-term Disability Employee Assistance Program (EAP) program 401K Plan with Company Match 18-21 days of the Paid Time Off (PTO) a year based on the tenure 12 Public Holidays Paid Parental leave Pre-tax commuter benefits MTV - [Free] Electric Car Charging Station General Description of Other Compensation “Other Compensation” includes, but is not limited to, bonuses, equity, or other forms of compensation that would be offered to the hired applicant in addition to their established salary range or wage scale. Recruitment Process Application Review - Job Fit Interview - Focus Interview – Offer The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances. Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage. Details to Consider This job posting may be closed prior to the stated end date for application if all openings are filled. Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process. Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below: https://www.coupang.jobs/privacy-policy/ Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, or gender (including pregnancy, gender identity, gender expression, sexual orientation, transgender status), national origin, age, disability, medical condition, HIV/AIDS or Hepatitis C status, marital status, military or veteran status, use of a trained dog guide or service animal, political activities, or affiliations, citizenship, or any other characteristic or class protected by the laws or regulations in the locations where we operate. If you need assistance and/or reasonable accommodation in the recruiting process due to a disability, please contact us at usrecruiting@coupang.com . Job Requisition ID: R0079167

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview As a part of Ecommerce Engineering team, we exist for wow customer experiences, world class service excellence and hyper growing revenue. To achieve this, we build scalable & extensible architecture to support fast business growth & expansion, we create high performance & resilient backend system to handle increasing customer requests and we setup stable & fault-tolerant mechanisms to guarantee the customer experience. Creating disruptive products & resilient platforms for customers with world-class talents and cutting-edge technology is our vision and our commitment to the company. What You Will Do Serve as a hands-on technical leader in security architecture, with deep expertise in distributed systems and open-source technologies. Design scalable, highly available systems with a strong focus on security. Lead the design and optimization of security and risk control modules within core systems, including but not limited to traffic risk control platforms and anti-fraud systems. Collaborate closely with product managers and business stakeholders to deeply understand business pain points, propose technical solutions, and drive mission-critical projects to completion. Lead architecture reviews and drive engineering excellence to ensure system stability and security under high-concurrency scenarios. Work cross-functionally with other tech teams to build platform-level security capabilities and enhance the organization’s overall risk detection and prevention systems. Basic Qualifications Excellent communication skills, with English reading and writing abilities. Strong analytical and problem-solving skills, with a passion for engineering excellence and setting high technical standards in security architecture. 5+ years of experience in software design and development, with a track record of building large-scale enterprise systems. Solid understanding of distributed systems; hands-on experience in designing and developing platforms for traffic risk control, transaction fraud detection, or account security is highly preferred. Ability to thrive in a fast-paced, dynamic environment and drive projects forward with efficiency. Bachelor’s degree in Computer Science, Engineering, or a related field. Recruitment Process Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances. Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage. Details to Consider This role is open to Singapore Citizens and Permanent Residents only This job posting may be closed prior to the stated end date for application if all openings are filled. Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process. Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Job titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer. Hiring may be restricted in case the legal qualifications required for hiring and work performance is not met. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://privacy.coupang.com/en/land/jobs/

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview As a Staff Backend Engineer, you will work on distributed systems and building next generation platform and products. You will help the team to bring industry best practices in software development and operations while improving their engineering skills to build pioneering e-commerce experience in new global markets. Working closely with a group of engineers in multiple geographic locations, you’ll solve challenge problems at scale with high reliability. Your efforts will directly have an impact on tens of millions of users every single day! What You Will Do Lead architecture design for scalable, extensible, and reliable systems Align technology roadmaps with leadership and stakeholders Build productivity tools using Claude and Windsurf Remove technical blockers and simplify complex problems into actionable solutions Write code when needed to guide teams and support high-priority initiatives Identify business and tech opportunities; evaluate and adopt new technologies Recruit, mentor, and grow top-tier engineering talent Basic Qualifications Bachelor's degree and/or master’s degree in computer science or equivalent 10+ years building and operating backend services and web applications Deep expertise in distributed systems, storage, data processing, and server technologies Strong coding skills in Java and Spring Framework; object-oriented design Experience with AWS-based service development and operations Experience with NoSQL and relational/columnar databases Preferred Qualifications Git, CI/CD automation, and Agile methodologies Experience driving improvements in code quality Familiarity with observability tools (e.g., Grafana, Prometheus) Passion and inclination towards Reliability and observability Type of work model Hybrid Details to consider Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://privacy.coupang.com/en/land/jobs/

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview Rocket Growth is the 2P marketplace at Coupang. The Supply Chain team within Rocket Growth has the mission to simplify and reduce cost of doing business for Sellers. Our technological solutions enable sellers to ship their inventory to Coupang and let Coupang handle the rest - fulfilment, customer returns, used reselling, vendor returns, etc. What You Will Do Serve as a technical lead on our most demanding, cross-functional projects involving Inventory and Promise. Independently come up with quality architecture and design of systems for new microservices and machine learning pipelines. Functionally decompose complex problems into simple, straightforward solutions. Possess expert knowledge in performance, scalability, enterprise distributed architecture, and engineering best practices. Assist in the career development of others, actively mentoring individuals and the community on advanced technical issues and helping managers guide the career growth of their team members. Exert technical influence over multiple teams, increasing their productivity and effectiveness by sharing your deep knowledge and experience. Basic Qualifications 8+ years of experience designing and operating high-scale distributed systems with strict latency and reliability requirements Excellent hands-on coding ability in Java or other Similar (backend systems at scale) Deep understanding of system design — API design, concurrency, data modelling, caching strategies, messaging, service-to-service communication (gRPC, REST) Strong code review skills — ability to identify subtle correctness, performance, and reliability issues in complex codebases Experience with production-grade systems handling high QPS, large data volumes, or Tier-1 SLAs Experience with event-driven architectures using Kafka at scale Experience with multi-region systems Experience with resilience engineering — circuit breakers, retry strategies, load testing, capacity planning, graceful degradation patterns Track record of technical leadership — setting architecture direction, driving cross-team alignment, mentoring senior engineers Preferred Qualifications Experience in ecommerce, fulfilment, supply chain, logistics, inventory, order management, or planning systems Experience with optimization systems — solvers (CPLEX, OR-Tools), decision engines, constraint programming, or data-science-integrated production systems Experience with Agentic AI tools for development and code review — using AI-assisted coding agents (e.g., Cursor, Copilot, Devin, Claude Code) to accelerate development velocity, improve code review quality, and automate repetitive engineering tasks Experience with Spec-Driven Development — defining system behaviour through specifications (OpenAPI/Swagger, Protocol Buffers, API-first design, contract-first development) before implementation, ensuring well-defined contracts between services Type of work model Hybrid Our Hybrid work model: Coupang hybrid work model is designed to enable a culture of collaboration that acts a catalyst to enrich the experience of employees. Employees are required to work at least 3 days in the office per week, with the flexibility to work from home 2 days a week, depending on the role requirement. Some businesses may require more time in office due to nature of work. Details to consider Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://privacy.coupang.com/en/land/jobs/

Company Introduction We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing e-commerce companies that established an unparalleled reputation for being a dominant and reliable force in South Korean commerce. We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day. Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional trade-offs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world. Role Overview Fulfilment Optimization (FO) owns the systems that decide how every Coupang order is planned, distributed, and fulfilled. Our Tier-1 services sit on the critical path of Coupang's ecommerce order flow — processing every order in real time across Korea and Taiwan. We operate multiple interconnected platform components: -Business Engine — Core order planning and distribution orchestrator (Kotlin/Spring Boot). Runs 5 distinct pipelines (Domestic, Cross-Market, 3PL, PDD, Replan) using a hexagonal architecture with pluggable processors, pruners, and manifest-based orchestration. -Planner Solver — Mixed-Integer Programming (MIP) optimization engine (Python/CPLEX) that minimizes total fulfilment cost across inventory, capacity, network, and delivery-promise constraints with sub-second latency requirements. -Network Manager — Manages fulfilment network topology, transportation cost, FC capacity, middle-mile logistics, and cross-FC consolidation (CFCC) across 90+ REST/gRPC endpoints. -FO Inventory — Real-time inventory availability, allocation, SKU management, and event-driven sync across multiple upstream sources (Kafka, Cassandra, Elasticsearch, Redis). -WMS Fulfilment — Order distribution, inventory allocation, fulfilment centre orchestration, shipment, delivery, and outbound management (Java/Spring, 138+ domain subpackages, Drools rules engine). -Online Simulation — Real-time simulation platform for testing planning changes against production-like order streams. -FO Workflows — Temporal-based workflow orchestration for long-running fulfilment processes. The Role We are looking for a Senior Staff Engineer who can operate across deep implementation and broad architecture. You will set the technical direction for Tier-1 fulfilment systems, write and review production code, design systems that scale under heavy ecommerce traffic, and raise the engineering bar across the organization. The engineer in this role will directly influence how millions of orders are fulfilled every day. Every architectural decision — solver latency, pruning strategy, network cost calculation, inventory allocation algorithm impacts customer delivery promise, fulfilment cost, and operational efficiency across Coupang's entire ecommerce platform in Korea and Taiwan. This is a rare opportunity to work at the intersection of large-scale distributed systems, real-time optimization, and ecommerce fulfilment — with direct, measurable business impact. What You Will Do -Design and build scalable, reliable Tier-1 services for order planning, fulfilment optimization, inventory allocation, and network cost management — systems that process every Coupang order in real time. -Own architecture across distributed systems involving gRPC service meshes, Kafka event pipelines, CPLEX optimization solvers, multi-layer caching (Redis, S3-backed Loadable Stores), and multi-region deployments. -Write production code in Kotlin and Java and set the bar for correctness, performance, and operational safety across the team. -Lead design and code reviews — identify correctness issues, scalability risks, and operational gaps in systems handling latency-sensitive order flows (sub-second solver deadlines, P99 monitoring with 3-5s alert thresholds). -Drive reliability for mission-critical services — circuit breakers, graceful degradation (hard/soft pruners with fallback), observability, and incident prevention. -Partner with Product, Data Science, and Operations to translate fulfilment optimization goals into technical execution — PDD rationalization, CFCC (Cross-FC Consolidation), CFlow transport planning, inventory group management, and solver model improvements. -Mentor engineers and create durable technical mechanisms (pipeline patterns, adapter abstractions, feature flag discipline) that scale beyond individual projects Basic Qualifications -Proven experience designing and operating high-scale distributed systems with strict latency and reliability requirements -Excellent hands-on coding ability in Kotlin or Java (backend systems at scale) -Deep understanding of system design — API design, concurrency, data modelling, caching strategies, messaging, service-to-service communication (gRPC, REST) -Strong code review skills — ability to identify subtle correctness, performance, and reliability issues in complex codebases -Experience with production-grade systems handling high QPS, large data volumes, or Tier-1 SLAs -Experience with event-driven architectures using Kafka at scale -Experience with multi-region systems — region-specific routing, data isolation, cross-border fulfilment -Experience with resilience engineering — circuit breakers, retry strategies, load testing, capacity planning, graceful degradation patterns -Track record of technical leadership — setting architecture direction, driving cross-team alignment, mentoring senior engineers Preferred Qualifications -Experience in ecommerce, fulfilment, supply chain, logistics, inventory, order management, or planning systems -Experience with optimization systems — solvers (CPLEX, OR-Tools), decision engines, constraint programming, or data-science-integrated production systems -Experience with Agentic AI tools for development and code review — using AI-assisted coding agents (e.g., Cursor, Copilot, Devin, Claude Code) to accelerate development velocity, improve code review quality, and automate repetitive engineering tasks -Experience with Spec-Driven Development — defining system behaviour through specifications (OpenAPI/Swagger, Protocol Buffers, API-first design, contract-first development) before implementation, ensuring well-defined contracts between services Type of work model Hybrid Details to consider • Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws. Privacy Notice Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://privacy.coupang.com/en/land/jobs/

쿠팡은 고객 감동 실현을 위해 존재합니다. 고객들이 "쿠팡 없이 그동안 어떻게 살았을까?" 라고 말할 때, 비로소 우리의 미션을 실현하고 있음을 알 수 있습니다. 고객들의 쇼핑과 식사, 생활 전반을 편하게 만들겠다는 유일한 집념으로 쿠팡은 수억 달러 규모의 이커머스 산업 전반의 혁신을 이끌고 있습니다. 쿠팡은 가장 빠르게 성장하는 이커머스 기업 중 하나로, 국내 커머스 업계에서의 독보적인 입지와, 고객 신뢰를 구축했습니다. 쿠팡은 스타트업 문화를 기반으로 한 글로벌 대형 상장사라고 자부합니다. 이것이 창립 당시의 기민함을 유지하며, 신규 서비스를 끊임없이 출시하며 비즈니스를 확장해 나가는 우리의 성장 동력입니다. 쿠팡의 모든 임직원에게는 기업가 정신을 갖추고 새로운 혁신과 이니셔티브를 추진할 수 있는 기회가 주어집니다. 주저 없이 일에 뛰어들어 성과를 이루고자 하는 과감성이, 바로 쿠팡이 일하는 방식의 본질입니다. 쿠팡에서는 여러분 자신, 동료, 팀 그리고 회사 전체가 매일 성장하는 모습을 목격할 것입니다. 쿠팡의 모든 직원은 커머스의 미래를 만들겠다는 쿠팡의 미션에 진심입니다. 우리는 고객의 문제를 해결해 나가고, 전통적인 관념과 통념에 맞서며 실현 가능한 한계를 뛰어넘고 있습니다. 고가용성 (always-on) 과 최첨단의 앞선 기술 (high-tech), 초연결사회 (hyper-connected world) 에서의 놀라운 업무 경험을 원하신다면, 지금 바로 쿠팡에 합류하세요. 조직 소개 본 직무는 Coupang Ads 조직의 백엔드 개발자로서 쿠팡 광고 플랫폼의 새로운 기능을 개발 및 설계하는 역할을 수행하게 됩니다. 쿠팡은 세계 최고 수준의 광고 비즈니스를 구축하기 위한 투자를 하고 있으며, 쿠팡 웹사이트 및 모바일 앱 상에 위치한 주요 구좌에 연관성 있는 광고를 운영하고 있습니다. Coupang Ads 조직은 쿠팡의 판매자 및 공급자에게 셀프서비스 광고 운영 기능을 제공함으로써 쿠팡의 광고 솔루션을 보다 성장시키기 위한 차세대 프로덕트 및 서비스를 개발 중에 있습니다. Coupang Ads 조직은 쿠팡의 광고 상품을 구현할 수 있는 시스템과 인프라를 개발할 열정적인 소프트웨어 개발자를 찾고 있습니다. 본 직무에는 그린필드 프로젝트 개발과 낮은 레이턴시 및 고가용성(availability) 서비스, 확장가능한 시스템, 프로그래매틱 연동을 위한 API 개발이 포함됩니다. 또한, 풀기 어려운 문제를 파악 및 해결하여 시스템의 확장성(scalability)과 신뢰성(reliability)을 향상시키는 작업과 효율적인 리소스 운영도 요구됩니다. 낮은 레이턴시와 높은 확장성을 갖춘 분산 서비스 개발에 관심이 있으신 분, 세계 최고 수준의 쿠팡 광고 비즈니스 구축이라는 큰 기회의 일원이 되고 싶으신 분, Coupang Ads 조직은 이러한 서비스를 함께 개발할 리더를 찾고 있습니다. 업무 내용 비즈니스가 원하는 결과물을 기술적 솔루션으로 해석하고 구현하여 비즈니스의 니즈를 충족 광고주향 캠페인 관리와 리포팅을 위한 확장가능하고 고성능의 마이크로 서비스 기반의 백엔드 서비스 개발 설계, 개발 및 운영 프론트엔드 개발자, 제품 관리자, 데이터 분석가, UX 디자이너를 포함한 cross-functional 팀과 긴밀하게 협업하여 원활하고 효율적인 솔루션을 제공함 광고 플랫폼의 다양한 구성 요소와의 원활한 통합을 위해 강력하고 안전한 API를 구현 복잡한 문제를 간단하고 간단한 솔루션으로 분해하고 효율적으로 커뮤니케이션하여, 팀이 우선순위에 따라서 빠르게 움직일 수 있는 기술적인 해결책 도출 중요한 시스템 문제를 깊이 파고들어 유사한 근본 원인을 선제적으로 해결하고 운영 우수성의 기준을 제고 새로운 기술, 테크닉 및 업계 최신 동향을 조사 및 파악하며, 조직에 솔루션 제공 및 플랫폼 전반의 가치제안 및 효율 개선 개발, 개선 및 테스트 프로젝트의 요구사항 및 프로세스, 절차 정의 코드 리뷰를 수행하고 팀의 주니어 멤버를 멘토링 자격 요건 Computer Science/Engineering 관련 전공분야의 BA/BS 학위가 있는 분 알고리즘, 데이터 구조 및 설계 패턴에 대한 깊은 이해를 바탕으로 한 소프트웨어 개발 경력 8년 이상인 분 웹 기반 소프트웨어 아키텍쳐, 분산 시스템 및 메시지 기반 아키텍쳐에 대한 깊은 이해가 있는 분 RESTful, GraphQL, GRPC API 및 마이크로서비스 아키텍처 설계 및 개발에 대한 전문 지식이 있는 분 데이터베이스 시스템, 데이터 웨어하우징 개념 및 언어(SQL, NoSQL)의 경험이 있는 분 장애 허용 및 모니터링 기능이 있는 대규모 운영 시스템 경험이 있는 분 뛰어난 문제 해결 및 디버깅 기술을 보유한 분 효과적인 의사소통 능력과 팀에서 협업할 수 있는 능력이 있는 분 우대 사항 광고 및 이커머스 도메인 경험이 있는 분 적정 규모의 빅데이터 그리고/또는 머신러닝 경험이 있는 분 AWS, Azure 또는 Google Cloud와 같은 클라우드 플랫폼 경험이 있는 분 컨테이너화 및 오케스트레이션 도구(예: Docker, Kubernetes)에 대한 경험이 있는 분 소프트웨어 개발팀 리더 경력이 있는 분 애자일 소프트웨어 개발 경험이 있는 분 Spring, Java, Kotlin, Node.js, Kafka, Redis, Hive, Hadoop, Spark, ElasticSearch 에 대한 경험이 있는 분 전형 절차 및 안내사항 전형 절차 서류전형 > 1차 면접 > 2차 면접 모든 면접은 비대면 화상면접으로 진행됩니다. 전형 절차는 직무별로 다르게 운영될 수 있으며, 일정 및 상황에 따라 변동될 수 있습니다. 참고 사항 본 공고는 모집 완료 시 조기 마감될 수 있습니다. 지원서 내용 중 허위사실이 있는 경우에는 합격이 취소될 수 있습니다. 취업 보호 대상자(보훈대상자, 장애인 등)는 관련 법률에 따라 채용우대를 받을 수 있습니다. 직급과 담당 업무 범위는 후보자의 전반적인 경력과 경험 등 제반 사정을 고려하여 변경될 수 있습니다. 이러한 변경이 필요할 경우, 최종 합격 통지 전 적절한 시기에 후보자와 커뮤니케이션 될 예정입니다. 개인정보 처리방침 쿠팡 그룹은 입사지원자 개인정보 처리방침(아래 링크)에 따라 귀하의 개인정보를 수집하여 처리합니다. https://www.coupang.jobs/kr/privacy-policy 서류 반환 정책 본 고지는 『채용절차의 공정화에 관한 법률』 제11조 제6항에 따른 것입니다. 당사 채용에 응시한 구직자 중 최종합격이 되지 못한 구직자는 『채용절차의 공정화에 관한 법률』에 따라 제출한 채용서류의 반환을 청구할 수 있음을 알려 드립니다. 다만, 홈페이지 또는 전자우편으로 제출된 경우나 구직자가 당사의 요구 없이 자발적으로 제출한 경우에는 그러하지 아니하며, 천재지변이나 그 밖에 당사에게 책임 없는 사유로 채용서류가 멸실된 경우에는 반환한 것으로 봅니다. 위 2항 본문에 따라 채용서류 반환 청구를 하는 구직자는 채용서류 반환청구서[채용절차의 공정화에 관한 법률 시행규칙 별지 제3호 서식]를 작성하여 당사 이메일 (recruitingops@coupang.com) 로 제출하면, 제출이 확인된 날로부터 14일 이내에 지정한 주소지로 등기우편을 통하여 발송해 드립니다. 이 경우 등기우편요금은 수신자 부담으로 하게 되오니 유념하시기 바랍니다. 당사는 위 2항 본문에 따른 구직자의 반환 청구에 대비하여 채용 여부가 확정된 날로부터 180일 간 구직자가 제출한 채용서류 원본을 보관하게 되며, 그때까지 채용서류의 반환을 청구하지 아니할 경우에는 『개인정보 보호법』에 따라 지체 없이 채용서류 일체를 파기할 예정입니다. 채용 및 업무 수행과 관련하여 요구되는 법령상 자격이 갖추어지지 않은 경우 채용이 제한될 수 있습니다.