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Member of Technical Staff (Machine Learning Engineer, Search)

Perplexity· Search
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Hybrid (Belgrade), Hybrid (London), Hybrid (Berlin)Full-timePosted 11mo ago

About the role

Experienced Machine Learning Engineer focused on retrieval and ranking to build the next generation of advanced search technologies.

Responsibilities

  • Relentlessly push search quality forward—through models, data, tools, or any other leverage available
  • Architect and build core components of our search platform and model stack
  • Train and evaluate retrieval, ranking and classification models, including LLMs
  • Deploy models - from boosting to LLMs - in a scalable and performant way
  • Build and optimize RAG pipelines for grounding and answer generation
  • Collaborate with Data, AI, Infrastructure and Product teams to ensure fast and high quality delivery

Qualifications

  • Deep 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

Skills

Required:Search and retrieval systemsLarge-scale search/recommender experience
Last updated Jul 15, 2026. Interested? Apply on the company site.

About Perplexity

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