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Posted 15 months ago

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Member of Technical Staff (Machine Learning Engineer, Search)

BelgradeOn-siteFull-time

AI Summary

Machine Learning Engineer focused on building advanced search technologies, specializing in retrieval and ranking. Responsible for architecting core components, training and evaluating models, deploying scalable solutions, and building RAG pipelines.

About this role

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

  • 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

A/b TestingClassification ModelsData ToolingDeploymentsExperimentationGroundingInformation RetrievalLarge-scale MLLLM IntegrationLLMsMachine LearningMetrics & EvaluationModel EvaluationModel ServingPipelinesRAG PipelinesRanking ModelsRecommender SystemsRetrieval ModelsScalabilitySearch Platforms

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