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Staff / Principal Applied AI Researcher (Agentic Search)
Nebius
Remote · EuropeSalary not disclosedfull-timeVerified recentlyOver a month oldNebius Careers
We are seeking a Staff or Principal Applied AI Researcher to join a fast growing team building an agent native search platform - the web access layer for AI systems. You can think of this as Google for AI agents: a system designed for machines, not humans.
Responsibilities
- Drive applied research and technical direction across retrieval and ranking systems
- Design and evolve multi stage retrieval architectures (query understanding, rewriting, reranking, iterative retrieval)
- Develop methods for grounding LLMs in real time web data at scale
- Lead experimentation on modern retrieval approaches (embeddings, hybrid search, reranking) and bring them into production
- Analyse trade-offs across relevance, latency, and cost at scale
- Own ambiguous problems end to end and contribute to product and research direction
Languages
- Work format
- Remote
- Seniority
- Lead
- Posted
- 7 Aug 2026 (1mo ago)
- Last verified
- 4 Oct 2026