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Staff Machine Learning Engineer

Mountain View💼 Full-time💰 $152,000–$152,000🗓 2026-08-03 → 2026-09-26

Core

Design and develop end-to-end machine learning solutions to drive customer growth, increase purchase frequency, and improve return on ad spend (ROAS) across Coupang's marketing platforms.

Role type

Staff Machine Learning Engineer (Growth Marketing)

Builds

Search Advertising, Affiliate, Display targeting, CRM, Audience, and Push Marketing platforms

Domain

E-commerce / Growth Marketing

Deliverable

production ML models

Required skills

Large-scale ML system design, distributed systems, deep learning, transformers, self-supervised pre-training, generative modeling, LLMs, model training at scale, Java/C++/Python

Preferred skills

Backend and ML system integration, cross-team collaboration, mentoring

Technologies

Java, C++, Python, Transformers, LLMs

Responsibilities

Build and deploy ML models for targeting, personalization, and optimization; establish automated processes for model development and validation; present methods to leadership; mentor junior engineers

Seniority

Staff, hands-on IC with mentorship

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