Senior Machine Learning Engineer Remote

AHU Technologies INC. is an IT consulting and permanent staffing firm that meets and exceeds the evolving IT service needs of leading corporations within the United States. They are seeking a Senior Machine Learning Engineer to build and optimize recommendation and search systems, focusing on retrieval and ranking functionalities.

Responsibilities:

• 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
• Fluency in Chinese/Mandarin is required, so only reach out exclusively to candidates of Chinese ethnic background
• Background in the entertainment or social media industry (e.g., TikTok, Pinterest, Instagram)
• Bonus signal: 5+ years production ML
• Bonus signal: recommendation systems
• Bonus signal: search ranking
• Bonus signal: embedding retrieval