Member of Technical Staff (Machine Learning Engineer, Search)

Perplexity ищет удалённого Member of Technical Staff с фокусом на machine learning для поиска, работа будет сосредоточена на retrieval, ranking и связанных улучшениях качества поиска. Роль предполагает создание ключевых частей search- и model-стека, обучение и оценку retrieval, ranking и classification systems, включая LLMs, а также их внедрение в масштабе. Она также включает создание и улучшение RAG pipelines и тесную работу с командами data, AI, infrastructure и product. Эта позиция подойдёт кандидату как минимум с пятью годами опыта в search- или recommender systems, глубокими знаниями оценки качества поиска и самостоятельным подходом к выполнению задач.

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