Principal Engineer, ML at Coupang
About the role
Responsibilities Define and drive the long-term technical vision, architecture, and strategy for the Ads Serving & ML Platform. Lead the design and evolution of large-scale advertising systems covering retrieval, ranking, auction, targeting, pacing, and measurement. Drive modernization involving large language models, generative AI, real-time inference, and next-generation ML infrastructure. Lead strategic technical investments that improve advertiser outcomes, customer experience, scalability,…
Interview process at Coupang
General interview process (this company's specific loop isn't published - reach out if you have insider info).
- Recruiter phone screen - typically 20-40 min
- Technical screen - 1 coding problem or take-home; format varies by company
- Onsite / virtual loop - typically 4-6 rounds over 2-3 weeks; exact split of coding, systems design, and behavioral varies by role and location
Platforms used: unknown — MiPrep tested compatible with major platforms
How to prepare
MiPrep helps you rehearse the specific cadence and question types Coupang interviewers score on. Upload your resume and this job description; MiPrep generates a rehearsed answer set in your voice from your own projects.