Senior Staff Machine Learning Engineer (Catalog)

About the role

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.

Responsibilities

We are seeking experienced and innovative ML Engineers with an entrepreneurial mindset to join our technical team pioneering advanced AI engineering for e‑commerce at Coupang. Our team is at the forefront of building enterprise knowledge graphs and semantically aware systems powered by deep AI reasoning. In this role, you will focus on building next‑generation e‑commerce knowledge graphs while pushing the boundaries of semantic reasoning, AI safety, and mechanistic interpretability to deliver transparent, reliable, and highly intelligent AI capabilities at scale.

Requirements

• 8+ years of relevant experience
• Bachelor's degree in Computer Science or related fields
• 5+ years of experience in AI/ML and familiarity with the latest deep learning techniques

Skills

• 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 augmented with RAG (Retrieval‑Augmented Generation) for large enterprise application in an industry
• Hands‑on ability to design and implement high‑quality algorithms / systems independently
• 3+ years working experience in Graph system, Graph Neural Network (GNN), Ontology, and Knowledge Graph
• 2+ years working experience in Semantic understanding, NER, and NLP/U
• 1+ years working experience in building foundational models
• Ability to dive deep into the algorithms / systems and generate ideas of improvements
• Ability to efficiently run experiments, analyze results, and quickly iterate