JD in one line

Own recommendation, search, ranking, retrieval, and discovery for Sekai’s content ecosystem.

What you will own

· Build recommendation and search across feed, discovery, search, and content continuation.

· Own retrieval/ranking: candidate generation, embeddings, two-tower models, features, and serving quality.

· Design, launch, and analyze recommendation/search experiments.

Requirements

· years industry experience building production ML systems with senior ownership.

· 5+ Hands-on recommendation, search, ranking, ads ranking, feed ranking, or content discovery systems.

· Consumer apps, entertainment, social, gaming, creator, or engagement-driven products.

· Two-tower models, embedding retrieval, candidate generation, ranking, and online/offline evaluation.

Hard filters

· 5+ years industry experience building production ML systems with senior ownership.

· Hands-on recommendation, search, ranking, ads ranking, feed ranking, or content discovery systems.

· Consumer apps, entertainment, social, gaming, creator, or engagement-driven products.

· Two-tower models, embedding retrieval, candidate generation, ranking, and online/offline evaluation.

Strong fit

· Build recommendation and search across feed, discovery, search, and content continuation.

· Own retrieval/ranking: candidate generation, embeddings, two-tower models, features, and serving quality.

· Design, launch, and analyze recommendation/search experiments.

Bonus:

Bonus signal: 5+ years production ML

Bonus signal: recommendation systems

Bonus signal: search ranking

Bonus signal: embedding retrieval

Anti-signals

· Cannot show core Senior Machine Learning Engineer, Recommendation experience

· Not comfortable with the listed work mode

Low ownership, coordination-only, or no shipped examples

This is a remote position.