Job Title: Senior Machine Learning Engineer

Location: United States - remote

Salary: 150k- 300k+ equity

Visa: Not specified

Fluency in Chinese/Mandarin is required, so only reach out exclusively to candidates of Chinese ethnic background.

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

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

Bachelor's degree from a recognized university in China is required

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.