Member of Technical Staff (Machine Learning Engineer, Search)
Quick Summary
Perplexity is seeking an experienced Machine Learning Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking.
Perplexity is seeking an experienced Machine Learning Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking.
Responsibilities
~1 min read- →
Relentlessly push search quality forward—through models, data, tools, or any other leverage available
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Architect and build core components of our search platform and model stack
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Train and evaluate retrieval, ranking and classification models, including LLMs
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Deploy models - from boosting to LLMs - in a scalable and performant way
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Build and optimize RAG pipelines for grounding and answer generation
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Collaborate with Data, AI, Infrastructure and Product teams to ensure fast and high quality delivery
Requirements
~1 min readDeep understanding of search and retrieval systems, including quality evaluation principles and metrics
Proven track record with large-scale search or recommender systems
Self-driven, with a strong sense of ownership and execution
Minimum of 5 years of working on search or recsys-related projects
Location & Eligibility
Listing Details
- Posted
- March 25, 2025
- First seen
- September 26, 2026
- Last seen
- October 10, 2026
Posting Health
- Days active
- 13
- Repost count
- 0
- Trust Level
- 27%
- Scored at
- October 10, 2026
Signal breakdown
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