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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 Senior Staff Software Engineer, Backend, you will work on distributed systems, and building next generation 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 the system. Draw a roadmaps and vision for the scalable and robust growth of the prodcut 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 12 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 2 days in the office per week, with the flexibility to work from home 3 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 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’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 We are looking for experienced and innovative ML engineers with an entrepreneurial mindset to be part of the technical team pioneering in advance AI engineering for e-commerce scenarios at Coupang. We pioneer in innovative optimization techniques for AI reasoning and token completion models. Basic Qualifications 8+ years of relevant experience Bachelors degree in Computer Science or related fields 5+ years of experience in AI/ML and familiarity with the latest deep learning techniques Preferred Qualifications 10+ years of relevant experience in technology companies or organizations Knowledge in e-commerce or eagerness to learn Experience applying Large Language Models or Large Image Models in an industry Hands-on with ability to design and implement high-quality algorithms / systems independently Ability to dive deep into the algorithms / systems and generate ideas of improvements Ability to efficiently run experiments, analyze results, and quickly iterate Solid track record of delivering big business impacts via technology innovations Excellent communications and collaborations across teams and across functionalities Some examples of the related projects: 1) Computer vision enabled e-commerce product enablement 2) Observability of model reasoning 3) Enabling new model architecture optimized for e-commerce 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 $174,000/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. A nnual bonus is 0-20% of the base salary. General Description of All Benefits (Drafter: Please check with your team if any change on the benefit description) 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 Paid Holidays Up to 6 weeks of 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. 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: 8845

Sr. Staff ll, Machine Learning Engineer - Search 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 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. About the Role 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 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, and embrace challenges that are seemingly impossible. The ideal candidates also have rich industry experience and a track record of delivering highly impactful projects. What You Will Do Root causes the bottle neck of the current search and recommendation systems and quantifies the defects. Propose solutions which address the search and discovery defects and leverage the state-of-the-art technologies, including ML, DL and large language model. Implement the solutions and conduct AB tests. Be a thought leader and able to gain consensus in the organization when needed. Some example projects include: Personalization ranking model and its integration to Search ranking stack. Personalized retrieval Recommendation model for all Discovery interfaces. User understanding and modeling What We’re Looking For Required Qualifications 10+ years of experience in related fields including Search, Information Retrieval, RecSys, ML, DL or NLP. Proficient coding skills in Java, C++ or Python Problem solver, Pragmatic and Open-minded Master Degree in Computer Science or related fields. Experience with handling large data volumes in a distributed environment Preferred Qualifications Love to explore new territory of technology and go deep on domain knowledge. Ability to think outside-the-box and challenge conventional wisdom. A passion to explore, improve, automate and optimize distributed systems and tools. PhD in Computer Science or related Engineering majors Bonus points for experience at ecommerce or social network or search companies Pay & Benefits: Our compensation reflects the cost of labor 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 $187,000/year in our lowest geographic market to $322,000/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. 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. Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to actual or perceived race (including traits historically associated with race, including but not limited to hair texture and protective hair styles), color, religion, religious creed (including religious dress and grooming practices), sex or gender (including pregnancy, childbirth, breastfeeding, and medical conditions related to pregnancy, childbirth or breastfeeding), gender identity, gender expression, sexual orientation, ,ancestry, national origin (including language use restrictions), age (40 and over), physical or mental disability, medical condition, genetic information, HIV/AIDS or Hepatitis C status, family status (including but not limited to marital or domestic partnership status), military or veteran status, use of a trained dog guide or service animal, political activities or affiliations, ancestry, citizenship, family and medical leave status, status as a victim of any violent crime, or any other characteristic or class protected by the laws or regulations in the locations where we operate. Coupang is also committed to providing a safe work environment for its employees and its consumers. If you need assistance and/or reasonable accommodation in the application of recruiting process due to a disability, please contact us at usrecruiting@coupang.com .

Job Description: Director of Backend Engineering (AI Infrastructure) 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. Role Overview We are seeking a visionary Director of Backend Engineering to lead the teams responsible for the software "brain" that manages our global AI Physical Infrastructure. You will oversee the development of the SDN orchestrators, automated fleet management systems, and the high-performance storage backends that power our AI training and inference clusters. Your mission is to abstract the complexity of specialized hardware (NVIDIA/HPC) into a seamless, automated, and hyper-reliable cloud platform. Key Responsibilities 1. Strategic Leadership & Fleet Orchestration Software-Defined Infrastructure: Lead the design and delivery of an SDN Orchestrator to automate complex GPU networking (InfiniBand/RoCE/NVLink) and core DC routing. Fleet Health Automation: Oversee the development of backend services for GPU Health & Fault Detection , automating the lifecycle from burn-in and diagnostics to global RMA workflows. Capacity & Traffic Engineering: Drive the backend logic for global traffic routing, load balancing (NGINX/Kong), and IPAM to ensure zero-bottleneck training environments. 2. Data & Storage Systems HPC Data Pipelines: Collaborate with storage engineers to build backend interfaces for Parallel File Systems (Lustre, Weka, VAST etc.) , ensuring high-throughput data delivery to compute nodes. Storage Durability: Direct the backend strategy for AI Object Storage, focusing on high durability and low-latency retrieval for massive datasets. 3. Engineering Excellence Scalable Architecture: Act as the final technical authority for AI Infra Architecture, ensuring systems are resilient, multi-region, and capable of sub-millisecond coordination. DevOps & IaC Culture: Champion a "Hardware-as-Code" mindset, utilizing Python, Ansible, and Terraform to eliminate manual intervention in DC operations. 4. Team Development Lead a multi-disciplinary org including Backend Developers, SDN Engineers, and Infra Ops teams, AI Infra Engineering Establish 24/7 L1/L2/L3 operational standards to maintain > 99.99% availability of the AI fleet. Required Qualifications Experience: 15+ years in Backend Engineering, with at least 5 years in a leadership role managing complex infrastructure (Cloud, FinTech, or HPC). Deep Infrastructure Knowledge: Proven experience with Linux internals , hardware-software interfaces (drivers/firmware), and distributed systems. Networking Mastery: Solid understanding of L2/L3 networking , and ideally, specialized fabrics like InfiniBand or RoCE . The Stack: Professional proficiency in Python, Go, or C++ , and deep experience with Terraform, Kubernetes, and Ansible . Large-Scale Data: Experience managing high-performance storage backends (GPFS, Lustre, or equivalent parallel systems). Hardware Savvy: You don't just write code; you understand power envelopes, liquid cooling constraints, and GPU architecture (NVIDIA/HPE/Dell). Preferred Skills Experience building custom SDN controllers or orchestration layers from scratch. Direct experience with NVIDIA or GPUDirect technologies. Previous success in a "Hyper-scale" environment (AWS, Azure, GCP, Meta, AI Cloouds etc.). 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://privacy.coupang.com/en/land/jobs/

Sr. Staff ll, AI Engineer - Search (L7-2) 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, and we are growing fast in Taiwan commerce as well. 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. About the Role We are looking for a Sr. Staff ll, AI Native, AI First Engineer to pioneer and architect entirely new applications where Generative AI and Large Language Models (LLMs) serve as the fundamental core intelligence. At Coupang, we are redefining the boundaries of what is possible. This role is at the forefront of our invention strategy, building systems that are not just AI-enhanced, but AI-native from the ground up to deliver transformative customer and operational experiences . In this role, you will own the end-to-end lifecycle of high-scale, non-deterministic AI systems—from rapid prototyping and architectural design to full-scale production deployment. You will operate with a full-stack AI mindset, leveraging cutting-edge LLM technology to solve complex problems and create entirely new product paradigms. This is a high-impact, pioneering role where you will drive innovation at scale, shape the future of our product intelligence, and demonstrate a proven track record of taking transformative AI concepts from zero to production. What You Will Do Design, architect, and own the full lifecycle of novel, end-to-end applications centered on generative AI and LLMs to create new e-commerce experiences. Develop and manage production AI infrastructure, including vector databases, high-throughput inference, and real-time data pipelines for context enrichment and low-latency serving. Develop and maintain strong RAG frameworks, grounding AI applications in Coupang’s proprietary product catalog, user history, and operational knowledge bases for factual accuracy and relevance. Implement advanced prompt engineering, agentic design, and complex LLM chains to build intelligent, stable software services. Enforce AI reliability, monitoring, and safety to manage model non-determinism, minimizing hallucinations and optimizing large-scale cost-efficiency. Rapidly prototype and productionize new AI capabilities to drive innovation and advance Coupang's mission to "build the future of commerce." What We’re Looking For Required Qualifications 3 years of experience in software engineering, with solid coding skills and critical code review capabilities, as well as a deep specialization in leveraging Large Language Models (LLMs) and Generative AI systems and productivity tools . Strong product-led engineering mindset with the ability to bridge the gap between cutting-edge AI research and practical, user-centric product features. Proven experience owning end-to-end AI applications , including: Generative AI agents and conversational interfaces. RAG (Retrieval-Augmented Generation) pipelines. LLM fine-tuning and optimization for specific domains. AI-powered automation and workflow systems. Demonstrated track record of taking AI-first products from concept to production , driving measurable improvements in user engagement, operational efficiency, or system performance. Deep technical understanding of modern AI stacks , including: Prompt engineering and LLM orchestration frameworks (e.g., LangChain, LlamaIndex). Vector databases and semantic search architectures. Scalable MLOps for non-deterministic AI models. Preferred Qualifications Experience in high-traffic, large-scale consumer AI environments (e.g., LLM-based assistants, search/recommendation systems, or generative content platforms) Experience leading or contributing to cross-functional AI research and product engineering teams. Experience building and launching 0→1 Generative AI products or integrating LLMs into existing complex product surfaces. Strong background in fast-scaling technology companies with a deep understanding of the challenges in deploying non-deterministic systems at scale. Passion for continuous experimentation and rapid prototyping to solve ambiguous customer problems using the latest advancements in AI/ML. Exposure/experience in ecommerce search. Pay & Benefits: Our compensation reflects the cost of labor 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 $171,000/year in our lowest geographic market to $351,000/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. 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. Coupang is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to actual or perceived race (including traits historically associated with race, including but not limited to hair texture and protective hair styles), color, religion, religious creed (including religious dress and grooming practices), sex or gender (including pregnancy, childbirth, breastfeeding, and medical conditions related to pregnancy, childbirth or breastfeeding), gender identity, gender expression, sexual orientation, ,ancestry, national origin (including language use restrictions), age (40 and over), physical or mental disability, medical condition, genetic information, HIV/AIDS or Hepatitis C status, family status (including but not limited to marital or domestic partnership status), military or veteran status, use of a trained dog guide or service animal, political activities or affiliations, ancestry, citizenship, family and medical leave status, status as a victim of any violent crime, or any other characteristic or class protected by the laws or regulations in the locations where we operate. Coupang is also committed to providing a safe work environment for its employees and its consumers. If you need assistance and/or reasonable accommodation in the application of recruiting process due to a disability, please contact us at usrecruiting@coupang.com .

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 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 We are looking for a Sr Staff Backend Engineer who has a deep understanding of the interplay of large scale microservices and hands-on experience with Service Mesh. You will be responsible for designing the architecture and driving the team to deliver a modern platform that powers the entirety of Coupang’s services. The Gateway Services team is responsible for building Coupang’s infrastructure layer using a distributed microservices architecture to enable inter-service communication. Key aspects of the infrastructure layer include discovery, load balancing, traffic resiliency, traffic management, failure recovery, and observability paradigms. The job position entails the following: Develop and implement enterprise-wide fine-grained traffic control. Use a centralized management plane for managing policies and configurations. Secure inter-service communication with mTLS encryption, identity-based authentication, and authorization. What You Will Do As a Senior Staff Software Engineer in the Gateway Services team, you will partner with leaders of multiple Platform teams. You will implement simple solutions to complex infrastructure problems, building a highly scalable, reliable, and efficient platform for our customers. You will be accountable for raising the bar on engineering and operational excellence. In this role, you will: Build Service Mesh components collaborating actively within a tightly knit talented team. Design and implement back-end APIs using REST/Hibernate using Java SpringBoot and infrastructure components using Go. Architect workload and service management infrastructure by designing and developing critical infrastructure components. Decompose complex problems into simple, straightforward solutions following Coupang's leadership principles "Move with Urgency" and "Ruthless Prioritization". Demonstrate excellence resulting in scalable systems and services with the highest quality architecture and design. Dive deep into critical system issues, proactively addressing similar root causes, and raising the bar on Operational Excellence. Collaborate with other Coupang technical leaders to make the service extensible to unlock opportunities for innovations. Basic Qualifications 13+ years of professional software development experience Experience in designing and implementing traffic management solutions to handle requests at scale. Hands-on experience in designing and developing large scale distributed systems for at least the past 4 years. Excellent development skills in Go/Java/Python with a proven track record of delivering mission critical systems. Experience with cloud computing using AWS or Azure or GCP. Preferred Qualifications Strong experience in designing and implementing Service Mesh (Istio/Envoy) features. Deep understanding of network components (virtual networks, route tables, subnets, and gateways). Deep understanding of modern web applications design architecture and API design patterns with high performance and scale. Ability to handle multiple competing priorities in a fast-paced environment and lead the delivery of large-scale services for complex business offerings. Type of work model Hybrid / Onsite / Remote working 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/