Senior Applied ML/AI Scientist - Search

$211k - $291k • New York City, NY; San Francisco, CA

Posted 2mo ago

About the job

The Search algorithms team at Faire is seeking a Senior Applied ML/AI Scientist to contribute to the next generation of their search engine. This role involves owning components end-to-end, from problem framing and modeling to production code and experiment design. You will integrate cutting-edge technologies like LLMs, query understanding, dense vector retrieval, deep personalization embeddings, multi-stage ranking, and reinforcement learning to deliver personalized product feeds with low latency. The position requires shipping models to live traffic and using A/B tests to validate their effectiveness, while also raising the team's technical bar through design reviews and knowledge sharing.

Responsibilities

  • Contribute to the next-generation Search engine, integrating LLMs, query understanding, dense vector retrieval, deep personalization embeddings, multi-stage ranking, and reinforcement learning to serve personalized product feeds with <100ms latency.
  • Own one or more search components end to end: problem framing, modeling, production code, experiment design, and roadmap decisions.
  • Ship models to live traffic and use A/B tests to validate their value.
  • Raise the team's bar through design reviews, pairing, and post-mortems.

Requirements

  • 3+ years building production ML systems, with significant experience in search, recommendations, or a related retrieval-and-relevance domain.
  • Shipped models that served real traffic and owned the experiments that proved their value.
  • Depth in modern retrieval stack components such as dual encoders, ANN serving, LLM-based query understanding, or learning-to-rank fundamentals, with the ability to learn other areas.
  • Strong Python skills and engineering capabilities to deploy models to production.
  • Clear communication with scientists, engineers, and PMs, effectively articulating ideas and adapting to feedback.
  • Excellent product judgment to align technical decisions with customer and business context.

Benefits

  • Equity
  • Comprehensive benefits
  • Competitive pay
  • Latest enterprise AI tools

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