[NCA and TW Ads] Senior Staff Machine Learning Engineer
Core
Designing long-term ML roadmaps and leading research/implementation of LLM/generative recommendation technologies to optimize ad recall, relevance, ranking, and bidding for Coupang's commerce platform.
Role type
Senior Staff Machine Learning Engineer (Ad Tech & Generative AI)
Builds
Ad recommendation systems, generative retrieval/ranking models, and RL-based bidding strategies for Coupang's shopping, food, and living services.
Domain
E-commerce / Ad Tech / Generative AI
Deliverable
production ML models
Required skills
Long-term technical roadmap planning, LLM/Generative Recommendation (DSI, TIGER, GENRE), RLHF/RLAIF, Reinforcement Learning (Offline RL, Contextual Bandit), Two-Tower/MTL/DIN/SIM architectures, Large-scale distributed ML systems design, End-to-end optimization of ad core modules (Recall, Relevance, Ranking, Auction, Bidding), System design
Preferred skills
Experience leading cross-team complex technical projects, Mentoring Staff MLEs and Senior Engineers, Technical hiring leadership
Technologies
TensorFlow, PyTorch
Responsibilities
Define 1-3 year ML roadmap for ad core areas; Lead research and deployment of generative recommendation models; Optimize ad strategies using RLHF/RLAIF; Collaborate with leadership on strategic technical opportunities; Lead cross-team projects for model upgrades and infrastructure; Mentor senior engineers and shape hiring standards.
Seniority
Senior Staff, hands-on IC with strategic leadership
