Staff Machine Learning Engineer
Core
Design and build next-generation machine learning systems, optimization platforms, and AI-native advertising products for Coupang's Offsite Ads business to improve ad targeting, ranking, bidding, and campaign performance.
Role type
Staff Machine Learning Engineer (Advertising & AI)
Builds
Large-scale prediction systems, bidding optimization, auction dynamics models, generative retrieval, foundation models, LLM-powered advertising solutions, and agentic AI systems for an offsite advertising ecosystem.
Domain
Digital Advertising, E-commerce, Large-scale AI/ML
Deliverable
production ML models
Required skills
Machine learning, deep learning, statistical modeling, optimization, large-scale data systems, Python, Java, PyTorch, CTR/CVR/GMV modeling, LLMs, embeddings, agentic AI, distributed training, model serving
Preferred skills
Digital advertising, recommendation systems, marketplace optimization, generative AI, retrieval systems, ML platforms (Kubeflow, Spark, Airflow), MLflow, XGBoost, LightGBM, Scikit-learn
Responsibilities
Design and build ML models for ad targeting, ranking, and bidding; Develop large-scale prediction and optimization models; Apply modern AI technologies (LLMs, agentic AI) to advertising challenges; Build scalable ML infrastructure and production systems; Define success metrics and evaluate business impact; Partner with Product, Engineering, and Data Science teams; Mentor engineers and drive technical excellence.
Seniority
Staff, hands-on IC with mentorship
