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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 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 as a 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 maintained 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 who 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. About the Team Our eCommerce Engineering group aims to reshape our customers' shopping experience, ultimately making them say, "How did I ever live without Coupang?" Composed of a strong engineering team with diverse skill sets drawn from global talent, eCommerce Engineering is evolving at an unparalleled pace to become a world-class eCommerce platform in the markets we serve. eCommerce Engineering is responsible for Coupang's core eCommerce services, as well as new emerging business lines that Coupang continually invests in to wow our customers, including Coupang Eats, Coupang Fresh, and more. Our vision is to build a world-class eCommerce platform by obsessing over reliable and effortless shopping experiences, powered by a highly productive engineering team. Our core values are Customer Focus, Ownership, and Collaboration. Role Overview The Pricing team is one of the core pillars of Coupang's business and is responsible for determining the price of every product sold on Coupang. Serving hundreds of millions of requests every day, our mission is to build and maintain highly scalable, extensible platforms that are also highly available and robust. As part of our Pricing team, you will directly architect and implement our next-generation pricing determination platforms. You will help the team adopt industry best practices in software development and operations while elevating their engineering skills to build pioneering e-commerce experiences in new global markets. Working closely with engineers across multiple geographic locations, you'll solve challenging problems at scale with high reliability. Your efforts will directly impact tens of millions of users every single day. What You Will Do Serve as a hands-on engineering leader with deep expertise in open-source technologies and distributed systems Design layered applications and drive the highest quality of architecture and design for pricing and commerce systems Partner with Product Owners and business stakeholders to understand problems, develop solutions, and lead engineers on mission-critical projects that resolve complex business challenges Define roadmaps and a technical vision for the scalable and robust growth of the pricing platform to support business expansion Collaborate with other Coupang engineering teams to build extensible services that unlock opportunities for innovation Minimum Qualifications 8+ years of professional experience in software design and development Strong experience with distributed systems and extensive experience building large-scale enterprise platforms Exceptional analytical and deep-dive skills; a bar raiser for engineering excellence Bachelor's degree in Computer Science, Engineering, or a related field Excellent verbal and written communication skills in English Ability to thrive in a dynamic, fast-paced environment with shifting priorities and tight deadlines Preferred Qualifications Proficiency in Java or similar JVM-based languages; experience with Spring Boot or equivalent frameworks Hands-on experience with cloud platforms (e.g. AWS) and container orchestration (Kubernetes, Docker) Experience with event-driven architectures, stream processing (Kafka, Flink), and real-time data pipelines Familiarity with CI/CD pipelines, infrastructure as code, and DevOps best practices Experience working in e-commerce, marketplace, or high-traffic consumer-facing platforms Why Join Coupang Work on systems that serve hundreds of millions of daily requests, directly impacting tens of millions of users Collaborate with world-class engineers across global offices in a culture that values ownership and innovation Shape the future of e-commerce in one of the world's most dynamic and tech-forward markets 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 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/

Description 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. Role Overview: We are looking for talented people who want to help shape the future of the e-commerce markets of Korea and Asia! One of Korea’s largest innovative and independent e-commerce firms, Coupang has revolutionised Korean customers’ shopping experience through a constant series of innovation. With more than 12 million customers making about 200 million purchases from Coupang, we are seeing billions of hits every year. Coupang is engaged in a fierce competition in Korea’s e-commerce sector, which accounts for about $60 billion of the country’s $342 billion distribution market. Recording an average of 15-20% growth, we are on track to become a $130 billion worth firm by 2020. In your role as the software development manager (SDM), you will be leading a team of best-in-class engineers dedicated to projects aimed at enhancing customer experience. Make the best use of your technical expertise and HR management skills to create a team of smart and curious troubleshooters. What You Will Do : As a SDM, you will also lead the future of a system that can fulfill computing needs based on a distributed system, high scalability, low latency and high availability. Your other duties will include standardising processes, tracking indices, and providing feedback regarding the system domains. As an engineering leader, you will be expected to demonstrate technical leadership that can help solve complicated issues and achieve a balance between strategies and tactics. To fulfill the role of a SDM successfully, you need to take a customer-centered approach, delving into what delivery features they want, and an excellent technical vision that will help attract the best engineers. You will also be required to have the ability to motivate and guide your team of engineers to develop their careers and grow professionally. As the SDM, you will: manage an agile team of professional developers dedicated to building a scalable, stable, and manageable system; recruit and hire developers to in line with the team’s goals; assist each team member with career-building through 1:1 evaluation and counseling sessions; define the system architecture with other developers; understand and prioritise requirements; collaborate with product owners and stakeholders to establish a roadmap and execute plans; define, measure, and report indices; Support the team’s software implementation and operation; lead improvements in development and management support; lead standardisation of and improvements in business processes. Basic Qualifications: more than 10 years’ software development more than 4 years’ software development management and architecture-related duties good verbal and written communication; proven technical leadership agile software methodology Preferred Qualifications : excellent practical skills and expertise; implementation and operation of large-scale, highly-scalable web service launching of product on time in a dynamic environment prioritisation of tasks in an ever-changing environment and the corresponding capabilities Type of Work Model : Hybrid - 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/ Equal Opportunities for All : Coupang is an equal opportunity employer and is committed to equal opportunity regardless of color, ancestry, religion, sex, nation origin, sexual orientation, age, citizenship, marital status, disability, gender identity or veteran status. Our unprecedented success could not be possible without the valuable inputs of our globally diverse team.

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’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 entrepxreneurs 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 In this role as a Senior Manager Engineering, you will help in building and developing teams, you will also support a rapidly growing business and ensure we are building highly available, reliable and extendable products. You will collaborate closely with Product & Business peers to break tradeoffs between growth and profitability. Key Responsibilities Provide leadership and technical direction to the engineering organizations and ensure that our engineers are working on building scalable, extendable and fault-tolerant systems Hire experienced individual contributors to grow a high performance and impact-driven organization Be a thought leader and collaborate closely with Business, Product & Engineering leaders to identify opportunities to drive business growth and improve efficiencies across various aspects of the business Drive mission critical projects in collaboration with various stakeholders and engineering leaders to solve complex business problems Dive deep to solve critical system issues. Ideally identify them before they happen and device plan to address them Foster a culture that continuously innovates through frequent product iterations (Agile/Scrum) and help the team develop their Agile practices further Drive and improve the operational excellence of your organization. Own definition, measurement, and reporting of operational metrics for your products & services Develop, mentor, and coach managers and tech leaders on career development and professional growth Minimum Qualifications 12+ years of industry experience of increasing responsibility leading engineering teams 5+ years of experience in managing software development with hands-on architectural experience in delivering innovative products and mission critical systems. Demonstrated experience in creating a vision, influencing cross-functionally and driving a technology organization to meet ambitious goals Experience leading global distributed teams, with exceptional abilities to attract, recruit, retain andscale a high-performance engineering organization Hands on technical skills in designing, building and delivering scalable and highly available products& services. Experience working in Java stack, AWS cloud and big data Strong sense of ownership, urgency, and drive. High on bias for action Strong verbal and written communication skills Bachelor/Master/PhD in Computer Science or Engineering, or related field 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/

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 Senior Staff Engineer on the Security Infrastructure team, you will build the platform that enables Coupang to win and grow our customers’ confidence while rapidly expanding and scaling our services. The Security Infrastructure team builds core security services and libraries used by all Coupang services to secure themselves and our customers. Our work supports teams across Coupang and thousands of microservices. We aim to make Coupang and its products more secure while also making our engineers more productive. Our responsibilities include building Identity and Access Management (IAM) functionality for our entire ecosystem of vendors, sellers and shoppers. We are looking for engineers who are passionate about building platforms at scale, with emphasis on usability, reliability and efficiency. You will work on adding features to our authentication and authorization platforms, and deeply integrating them with Coupang’s service infrastructure. The successful candidate will be a well-rounded engineer who balances strategic and design thinking with attention to detail in implementation and operations. If that sounds like you, come join us! What You Will Do Develop our IAM platforms and rapidly iterate while collaborating actively as part of a small, highly talented team Partner with teams across the company to understand their current needs and future direction Think systematically to identify technical solutions, balancing strategic goals and immediate impact Demonstrate excellence in architecture and design, resulting in robust and scalable systems Hands-on develop critical infrastructure components Write back-end APIs in Java and Go, using industry-standard frameworks Work across teams to drive platform adoption, helping teams prioritize ruthlessly and “move with urgency” Dive deep into critical system issues, constantly raising the bar on Operational Excellence Serve as a role model for other engineers and shape our team culture Basic Qualifications Bachelor's degree in Computer Science, Electrical Engineering, Math, or a closely related field 8 years of experience in backend software development Experience working in cloud environments, particularly AWS Demonstrated experience in building and maintaining highly available, distributed systems Preferred Qualifications Masters or PhD degree in computer science or other related technical field Working knowledge of security protocols such as OIDC and OAuth2 Working knowledge of IAM systems such as identity providers and role based authorization Experience working with Kubernetes, gRPC and Istio Experience building high-reliability and low-latency systems in the Cloud Experience with CI/CD pipelines and Infrastructure as Code Fluent in one or more of C++, Java and Go Recent hands-on experience designing and developing large scale distributed systems Experience with cloud computing using AWS, Azure or GCP Deep understanding of Cloud applications design and architecture, good API design patterns, performance and scale 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 $174,00/year to $299,000/year. 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 - 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 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: 8748

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’re collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We are one of the fastest-growing ecommerce 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 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 Global Operations Automation and Robotics Technology (GO ART) is the Zero-One organization within Coupang chartered to design, build, and deploy the most advanced fulfillment and transportation automation and robotics solutions in the industry. We are transforming Coupang's logistics network through in-house robotics, computer vision, and AI — at a scale and speed unmatched in Asian e-commerce. The team is based in Mountain View, Seattle, and Seoul. We are looking for a Senior Director of Robotics & Computer Vision to lead the technical strategy, organization, and delivery of GO ART's robotic perception and manipulation programs end-to-end. This executive is the single technical owner for how Coupang's fulfillment centers see, reason about, and physically interact with the world. The right candidate is a player-coach technology leader who has personally built and shipped robotic perception or manipulation systems at production scale, and who has subsequently grown and led multi-team organizations (engineers, applied scientists, and hardware/integration partners) that deliver against aggressive operational milestones. They are equally comfortable presenting a research roadmap to executives, debugging a 6-DoF pose-estimation pipeline on the floor of an FC, and recruiting world-class talent into a fast-moving Zero-One environment. Key Responsibilities Own the technical vision and multi-year roadmap for robotic perception, manipulation, and CV-driven automation across Coupang's global fulfillment and logistics network. Build and lead the org — multiple teams of CV engineers, robotics engineers, applied scientists, and ML engineers across the U.S. and Korea. Hire, mentor, and develop senior IC and management talent. Set the bar for technical excellence in real-time perception (2D/2.5D/3D sensing, DNN-based detection/tracking/recognition, pose estimation, 3D reconstruction, sensor calibration) and robotic manipulation (grasping, picking, packing, induction, sortation). Drive cross-functional execution with hardware, controls, simulation, MLOps, fleet software, and operations teams to deliver integrated systems from prototype to production deployment at scale. Translate operational requirements into engineering programs — partner with FC operations, industrial engineering, and supply-chain leaders (largely KST-based) to identify the highest-ROI automation opportunities and ship against them. Represent Coupang externally as a technical thought leader in robotics and CV: conferences, publications, partnerships with academia, and senior-level vendor/partner engagements. Operate with a startup mindset — comfortable under ambiguity, hands-on when the problem demands it, and relentless about converting research into deployed, reliable, cost-effective systems. Basic Qualifications PhD in Computer Science, Electrical Engineering, Robotics, Computer Vision, AI/ML, or a closely related discipline (or MS with equivalent industry depth). 12+ years of experience developing and shipping production robotics, computer vision, or robotic perception systems — including hands-on technical contribution earlier in career. 6+ years leading engineering organizations, with demonstrated experience managing managers and scaling teams of 30+ across multiple locations. Track record of delivering at least one large-scale robotics or CV automation program from concept to wide production deployment (warehouse automation, autonomous systems, manufacturing robotics, or comparable). Deep expertise in modern computer vision and deep learning: real-time DNN architectures, 2D/3D object detection, tracking, recognition, 6-DoF pose estimation, 3D data processing, automated sensor calibration. Demonstrated ability to set technical direction, make architectural calls, and resolve ambiguity in fast-moving, resource-constrained environments. Preferred Qualifications Experience leading robotics/CV organizations at hyperscale e-commerce, logistics, or robotics companies (e.g., Amazon Robotics, JD.com, Alibaba, Symbotic, Nimble, Covariant, Berkshire Grey, or comparable). Direct experience building and deploying robotic manipulation systems (pick/place, induction, palletizing, kitting) using robotic arms in production fulfillment environments. Experience defining and operationalizing the full robotic perception stack: 2D/2.5D/3D sensors, real-time CV processing platforms, calibration, simulation, data pipelines, and on-robot deployment. Strong publication record or external research presence in CV/robotics/ML (CVPR, ICCV, ECCV, ICRA, IROS, RSS, NeurIPS, etc.). Proven ability to recruit and retain senior IC and management talent from top-tier robotics, CV, and ML programs. Comfort working closely with KST-based engineering and operations partners; willingness to travel internationally as needed. Excellent executive communication: able to present complex technical strategy clearly to engineers, executives, and operational stakeholders. Recruitment Process and Others 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 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. Coupang does not discriminate against disabled applicants or those with veteran status. We are proud to offer equal opportunities for all applicants. 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. 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/en/privacy-policy/ Document Return Policy This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act. A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit the request to the Company (Coupang Recruiting Team, Tower 730, 570 Songpa-daero, Songpa-gu, Seoul). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all of his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.

Senior Staff/Staff Machine Learning Engineer-BJ/SH 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 sped 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. As a Senior Staff Machine Learning Engineer in Search and Discovery, you will leverage the most advanced algorithms to improve Coupang’s product search and discovery quality. You will spearhead the integration of Large Language Models (LLMs) and Generative AI to revolutionize our core search pipeline—including query understanding, product understanding, semantic retrieval, and final-stage ranking. You are expected to be a leading expert in one or multiple areas including information retrieval, recommendation systems, machine learning, deep learning, or natural language processing. The ideal candidates are pragmatic, resourceful, embrace seemingly impossible challenges, and have a proven track record of deploying high-scale, low-latency AI solutions in production. What You Will Do System Diagnostics: Root cause the bottlenecks of the current search and recommendation systems and quantify the defects across the entire search funnel (query rewriting/ retrieval/ranking). State-of-the-Art Solutions : Propose and architect end-to-end solutions that leverage advanced ML, DL, and Generative AI/LLMs to upgrade traditional search components into AI-native architectures. Core Funnel Optimization with LLMs : Query Understanding : Build next-generation query understanding services (intent detection, query rewrite, semantic expansion, entity extraction) utilizing fine-tuned LLMs. Candidate Retrieval : Design and scale semantic/dense retrieval systems, combining traditional vector search (ANN) with generative retrieval techniques. Ranking & Reranking : Develop and optimize LLM-based listwise/pairwise reranking models, and tackle performance trade-offs (latency, cost, throughput) for real-time serving. Production & Evaluation : Implement solutions, optimize offline/online inference performance (using model distillation, quantization, vLLM/TensorRT), and conduct rigorous A/B tests. Technical Leadership : Be a thought leader, mentor senior engineers, and gain consensus across cross-functional organizations (Infrastructure, Platform, Product) to drive the search AI roadmap. Example Projects Include LLM-Powered Query Understanding : We train and fine-tune in-house LLMs to perform multi-task query tagging, real-time query rewriting/expansion, and precise intent categorization. Generative & Semantic Retrieval : We use deep representation learning, two-tower models, and LLM-generated semantic embeddings combined with vector databases (e.g., Milvus, Vespa) for hyper-accurate candidate retrieval. LLM Reranking & Distillation : We explore listwise and pairwise LLM reranking models to evaluate query-item relevance, while distilling their reasoning capabilities into smaller, sub-millisecond models for real-time serving. Deep Conversion & Personalization : We build Deep Learning-based conversion prediction models ($CVR$) incorporating real-time user state, query intent, and multi-modal product representations. Graph-based Relationships : We leverage graph neural networks (GNNs) and knowledge graphs to ground our LLMs, exploring latent relationships between query sessions and catalog documents. Basic Qualifications 10+ years of professional experience in related fields including Search, Information Retrieval, RecSys, ML, DL, or NLP. Solid software engineering foundation with proficient coding skills in Python, C++, or Java. Distributed Systems Experience : Proven experience handling large data volumes, training large-scale models, and serving high-QPS pipelines in distributed environments (e.g., Spark, Ray, Kubernetes). Pragmatic Problem Solver : Demonstrated ability to take ambiguous business problems, formulate them mathematically, and deliver production-grade ML solutions. Education : Master’s Degree in Computer Science, Data Science, or related engineering fields. Preferred Qualifications LLM & GenAI Expertise : Deep hands-on experience in fine-tuning (SFT, LoRA), aligning (RLHF/DPO), or distilling LLMs specifically for search, recommendation, or NLP tasks (e.g., query expansion, dense retrieval, reranking).

회사 소개 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 커머스 산업 전반의 혁신을 이끌고 있습니다. 쿠팡은 가장 빠르게 성장하는 리테일 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. 팀 소개 쿠팡 Detection Ops 팀 은 웹 보안, 네트워크 보안, 이메일 보안, 엔드포인트 보안 전반에 걸쳐보안 Appliance 장비, Endpoint 보안 솔루션, 그리고 다양한 SaaS 기반 보안 서비스를 운영 및 관리하고 있습니다. 우리는 쿠팡의 광범위한 Attack Surface 전반에서 발생하는 사이버 위협을 탐지하고 차단하여 보안 사고로 인한 피해를 최소화하는 동시에 , 정확한 원인 분석을 통해 재발 방지 체계를 구축하는 핵심 역할을 수행하고 있습니다 . Detection Ops 팀에 합류하시면, 웹, 네트워크, 엔드포인트 , 이메일 보안 등 다양한 보안 영역을 아우르는 실무 경험을 쌓을 수 있으며 각 영역을 담당하는 여러 전문가들과의 긴밀한 협업을 통해 자연스럽게 보안 전반에 대한 시야와 전문성을 확장할 수 있습니다. 필요에 따라 특정 도메인에 국한되지 않고 여러 보안 솔루션과 서비스에 직접 참여하고 경험해볼 수 있는 기회가 열려 있습니다. 이를 통해 단일 기술에 국한되지 않은, 폭넓고 탄탄한 보안 운영 역량을 갖춘 엔지니어로 성장할 수 있는 환경을 제공합니다. 업무 내용 이메일 보안 관련 인프라 설계 및 구현 진행 이메일 보안 솔루션 운영 및 모니터링 피싱, 스팸, 악성파일이 포함된 이메일 기반 공격 식별 및 대응 이메일 보안 솔루션 테스트, 도입 및 결과보고 이메일 관련 탐지 정책 개발 및 Playbook 수립 이메일 보안 리뷰, 절차/가이드라인 수립 및 지속 유지 관리 이메일 관련 보안 사고 발생 시 신속한 대응과, 보고 및 피해 최소화를 위한 조치 수행 피싱 모의 훈련 진행, 트렌드 확인 및 보고서 작성 최신 이메일 보안 기술 및 동향 연구 및 시스템 적용 업무 외 시간의 사고 및 이슈에 대비한 On-call 자격 요건 관련 총 경력 5년 이상, 이메일 보안 시스템 및 솔루션 운영 경험 3년 이상 우대 이메일 보안 서비스 운영 경험 이메일 보안 정책 설정 및 절차 수립 경험 피싱 모의 훈련 진행 경험 SPF, DKIM, DMARC 등의 이메일 인증 기술에 대한 이해와 실무 경험 이메일 헤더 분석, 위협 분석 및 대응에 대한 경험과 능력 이메일 트래픽 관련 지식 보유 및 보안 정책 및 절차 수립 경험 각종 악성 파일, 피싱 웹사이트 등 분석 경험 네트워크 보안 및 시스템 보안에 대한 기본적인 지식 보유 뛰어난 분석기술 및 문제해결 능력 보유 데이터와 통찰력을 근거로 사람들을 설득하고 공감대를 형성해갈 수 있는 뛰어난 의사소통 능력 보유 컴퓨터 혹은 사이버보안관련 학사학위 취득자 또는 동등한 수준의 실무 경험 보유 우대 사항 자동화 및 스크립트(Python, Go, Linux shell, Powershell 등) 개발 경험 사이버 보안 관련 자격증 (예: CISSP, 정보처리기사, 정보보안기사 등) SQL 쿼리, 데이터 시각화 등 데이터 분석관련 업무 지식(Splunk, ELK Stack) 클라우드 플랫폼(예: AWS, Azure, GCP) 관련 지식 OWASP, MITRE ATT&CK 관련 지식 또는 적용 경험 On-premise , Cloud환경(AWS, Azure, GCP등 ) 기본적인 지식 보유 전형 절차 및 안내 사항 전형 절차 서류전형 - 화상면접 1/2차 – 최종 합격 전형절차는 직무별로 다르게 운영될 수 있으며, 일정 및 상황에 따라 변동될 수 있습니다. 전형 일정 및 결과는 지원서에 등록하신 이메일로 개별 안내 드립니다. 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 제반사정을 고려하여 변경될 수 있습니다. 이러한 변경이 필요할 경우, 최종 합격 통지 전 적절한 시기에 후보자와 커뮤니케이션 될 예정입니다. 채용 및 업무 수행과 관련하여 요구되는 법령상 자격이 갖추어지지 않은 경우 채용이 제한될 수 있습니다. 고용형태는 정규직으로 수습기간 12 주를 포함 합니다 . 단, 업무상 필요한 경우에는 상기 수습기간을 적용하지 않거나 단축 또는 연장할 수 있습니다. 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 『채용절차의공정화에관한법률 』 제11조제6항에 따른 것 입니다. 당사 채용에 응시한 구직자 중 최종 합격이 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. 위2항 본문에 따라 채용 서류 반환 청구를 하는 구직자는 채용 서류 반환 청구서 [채용절차의 공정화에 관한 법률 시행규칙 별지 제 3 호 서식]를 작성하여 이메일 ( recruitingops@coupang.com ) 로 제출하면, 제출이 확인된 날로부터 14 일 이내에 지정한 주소지로 등기우편을 통하여 발송해 드립니다. 이 경우 등기우편요금은 수신자 부담으로 하게 되오니 유념하시기 바랍니다. 당사는 위2항 본문에 따른 구직자의 반환 청구에 대비하여 채용 여부가 확정된 날로부터 180 일간 구직자가 제출한 채용서류 원본을 보관하게 되며, 그때까지 채용서류의 반환을 청구하지 아니할 경우에는 『개인정보 보호법』에 따라 지체 없이 채용서류 일체를 파기할 예정입니다. 단, 위 1항 내지 4항의 내용은 대한민국의 노동 관계 법령이 적용되는 경우에만 적용됩니다. 그 이외의 경우에는 적용되지 않습니다.

The fintech business of Coupang is reimagining financial services for both our consumers and sellers, so they can do more with their money. Coupang Pay focuses on delivering innovative payment and financial services solutions to everyone who uses the Coupang app — from customers buying products on Coupang.com, to marketplace vendors, and restaurants that offer their services via Coupang Eats. We develop solutions with our latest tech innovations to serve the growing needs of Coupang’s customers in Korea and Taiwan. This includes Coupay, an online wallet with a proprietary one-touch payment capability. In particular, we are rapidly scaling the Wow credit card, a co-branded card that offers industry-leading rewards as part of our efforts to maximize customer values. For sellers, we are building out multiple liquidity options to help small and medium sized enterprises grow their business, using BaaS (Banking as a Service) capability. If you want to leverage your extensive experience within the fintech space, join us. We help customers spend less time checking out so they can spend more time shopping for what they love. Key Responsibilities We are seeking a Sr. Staff Back-end Engineer who is both a visionary technical leader and a hands-on builder. This role combines architectural ownership, full-stack development, and distributed systems expertise to deliver payment systems with industry-leading scale, resiliency, and speed. Hands-on Architecture & Development Architect, design, and implement complex, distributed, cloud-native systems spanning frontend, backend, APIs, data pipelines, and infrastructure. Write and review production-grade code; optimize critical paths for performance, reliability, and correctness. Lead by example in code quality, observability, CI/CD, and security. Operate at Scale & Speed Deliver mission-critical features to millions of users with rapid iteration while maintaining high availability and data integrity. Optimize systems for concurrency, throughput, and cost efficiency under heavy global loads. Participate in on-call rotation and drive continuous improvements in reliability and incident prevention. Full-Stack & Distributed Systems Leadership Own large-scale payment microservices, event-driven pipelines, caching systems, and real-time APIs. Guide teams across web/mobile frontends, middleware, and backend services to ensure cohesive and performant experiences. Spearhead adoption of best practices in distributed computing, fault tolerance, and multi-region scaling. Innovation & Emerging Technology Drive adoption of AI/ML technologies—build or integrate AI agents and intelligent automations into payment workflows. Stay ahead of fintech innovation, evaluating and deploying new technologies to improve customer experience and system resilience. Leadership & Mentorship Mentor senior engineers and Sr.Staff-level peers, fostering a culture of innovation, technical rigor, and rapid delivery. Collaborate cross-functionally with product, design, and infrastructure leaders to shape both technical vision and product strategy. Basic Qualifications Bachelor’s degree in Computer Science, Software Engineering, or related field. 15+ years of software engineering experience, with proven success in large-scale distributed systems Deep expertise in full-stack development (Java, Go, Python, JavaScript/TypeScript, or equivalent) and core payment systems. Hands-on architecture and design experience with microservices, event-driven systems, APIs, and real-time data processing. Strong fundamentals in algorithms, data structures, concurrency, and system design. Proven ability to deliver rapidly and reliably in fast-paced, high-growth environments Preferred Qualifications Master’s or PhD in Computer Science or related technical discipline. Payment systems experience at top global fintech companies (e.g., Stripe, PayPal, Razorpay, JusPay, AliPay, Visa, Adyen, Square, Mastercard). Hands-on experience building and deploying AI Agents (GenAI, RAG, workflow automation, LLMs) into production-scale systems. Deep knowledge of distributed microservices, cloud-native architectures (Kubernetes, containerization, serverless), and multi-region scaling. Experience in dealing with and resolving the issues that occur when an organization grows in size and the systems get complicated Publications, patents, or open-source contributions in distributed systems, payments, or AI applications. Fluent English (Korean a plus); strong communication skills with global stakeholders. Why Coupang Pay? Shape the future of digital payments in one of the world’s fastest-growing e-commerce ecosystems. Own mission-critical systems serving millions of customers at global scale. Work in an inclusive, high-impact culture that values innovation, speed, and craftsmanship. Competitive compensation, equity, benefits, and continuous learning opportunities. Recruitment Process and Others: Recruitment Process Application Review - 1st Interview - Virtual Onsite Interviews - 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. Things 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. Coupang does not discriminate against disabled applicants or those with veteran status. We are proud to offer equal opportunities for all applicants. 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/en/privacy-policy/ Document Return Policy This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act. A job applicant, who has applied but not been finally selected for a position at Coupang (the “ Company ”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit the request to the Company by email (recruitingops@coupang.com) In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all of his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act. Equal Opportunities for All Coupang is an equal opportunity employer. Our unprecedented success could not be possible without the valuable inputs of our globally diverse team.