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 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 As a Senior Staff Backend Engineer, you will lead the design and development of distributed systems and next-generation platforms that power Coupang’s global e-commerce experience. You will collaborate with cross-functional teams across geographies to solve complex problems at scale, while mentoring engineers and driving technical excellence across the organization. What You Will Do <ul> <li>Lead the development of scalable and fault-tolerant backend systems</li> <li>Define and execute technical strategy in alignment with product roadmaps</li> <li>Drive architectural decisions and promote best practices across engineering teams</li> <li>Collaborate with senior leadership to prioritize and plan strategic initiatives</li> <li>Foster a culture of innovation and continuous improvement through Agile methodologies</li> <li>Own operational metrics and ensure high system reliability and observability</li> <li>Mentor and grow engineering talent through coaching and technical guidance</li> <li>Establish and manage operational support processes for backend services</li> </ul> Basic Qualifications <ul> <li>Bachelor’s or Master’s degree in Computer Science or related field</li> <li>15+ years of experience in software development</li> <li>10+ years of experience building and operating backend services and web applications</li> <li>Strong proficiency in Java and Spring Framework</li> <li>Deep expertise in distributed systems, storage, and server technologies</li> </ul> Preferred Qualifications <ul> <li>Experience with Amazon Web Services (AWS)</li> <li>Hands-on experience with NoSQL and relational/columnar databases</li> <li>Familiarity with CI/CD automation and Agile methodologies</li> <li>Knowledge of observability tools such as Grafana, Prometheus, and ELK stack</li> <li>Passion for reliability engineering and operational excellence</li> </ul>