Senior Machine Learning Engineer Remote
Location: United States - remote Visa: US Citizens or Green Card Holders 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. Background in the entertainment or social media industry (e.g., TikTok, Pinterest, Instagram). 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.