Staff Machine Learning Engineer

Please complete the attached Internal Transfer Request Form  and submit. Please make sure to apply with your Coupang e-mail address . 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 As our Staff Machine Learning Engineer for Coupang Media Group (CMG), Offsite Ads , you will be responsible for defining and building the next generation of machine learning systems, optimization platforms, and AI-native advertising products that power Coupang's rapidly growing offsite advertising business. The Coupang Media Group (CMG) provides advertisers with a comprehensive suite of marketing solutions designed to help brands reach customers and accelerate business growth. While CMG established a leading advertising marketplace within Coupang's ecosystem, Offsite Ads extends advertiser reach beyond Coupang-owned properties, enabling brands to engage customers across the broader internet while leveraging Coupang's unique commerce signals, first-party audience assets, and deep understanding of shopper intent. Since its inception in 2025, the Offsite Ads business has experienced exceptional growth, achieving more than 2x year-over-year revenue growth for consecutive years. As we continue to scale, we are investing heavily in world-class machine learning, large-scale AI infrastructure, and next-generation advertising technologies to build one of the industry's most advanced commerce media platforms. This is a unique opportunity to join and shape a fast-growing organization with significant revenue impact and strategic importance to Coupang. You will work on some of the most challenging problems in modern advertising, including large-scale prediction systems, bidding optimization, auction dynamics modeling, generative retrieval, foundation models,…