Machine Learning Engineer - United States - Remote

Job Title: Senior Machine Learning Engineer

Location: United States (Remote)

JD in One Line

Own recommendation, search, ranking, retrieval, and discovery for a consumer content ecosystem.

What You Will Own

• Build recommendation and search across feed, discovery, search, and content continuation.
• Own retrieval and ranking systems, including candidate generation, embeddings, two-tower models, feature engineering, and serving quality.
• Design, launch, and analyze recommendation and search experiments.

Requirements

• 5+ years of industry experience building production ML systems with senior-level ownership.
• Hands-on experience with recommendation, search, ranking, ads ranking, feed ranking, or content discovery systems.
• Experience working on consumer applications, entertainment, social media, gaming, creator platforms, or other engagement-driven products.
• Strong knowledge of two-tower models, embedding retrieval, candidate generation, ranking systems, and online/offline evaluation.

Hard Filters

• 5+ years of industry experience building production ML systems with senior-level ownership.
• Hands-on experience with recommendation, search, ranking, ads ranking, feed ranking, or content discovery systems.
• Experience with consumer applications, entertainment, social, gaming, creator, or engagement-driven products.
• Expertise in two-tower models, embedding retrieval, candidate generation, ranking, and online/offline evaluation.
• Fluency in Chinese (Mandarin) is required.

Strong Fit

• Built recommendation and search systems across feed, discovery, search, and content continuation.
• Owned retrieval and ranking systems, including candidate generation, embeddings, two-tower models, features, and serving quality.
• Designed, launched, and analyzed recommendation/search experiments.

Bonus Signals

• 5+ years of production ML experience.
• Strong background in recommendation systems.
• Experience with search ranking.
• Experience with embedding retrieval.

Anti-Signals

• Cannot demonstrate core Senior Machine Learning Engineer experience focused on recommendation systems.
• Not comfortable with the specified remote work arrangement.
• Primarily coordination-focused with limited technical ownership or no shipped production examples.

Interview Process

• Initial recruiter screen.
• Senior Machine Learning Engineer (Recommendation) technical/product deep dive.
• Team/founder conversation.

Culture

• AI-native, fast-paced startup environment with strong ownership expectations.
• Focus on building consumer AI products at the intersection of AI, social, mobile, and interactive entertainment.
• Looking for engineers who ship quickly, learn from users, and take end-to-end ownership.

This is a remote position.