Senior Applied AI Researcher for Production-Scale Retrieval

Nebius; Zürich; Vor Ort; CHF 210.000 - 280.000; Vollzeit

Benefits dieser Stelle

Competitive compensation

Career growth

Flexibility and ownership

Collaborative and innovative culture

Impactful AI projects

International environment

Zusammenfassung

Nebius is building a full-stack AI cloud platform and seeks a Staff or Principal Applied AI Researcher to own key parts of the applied AI research direction and system design.

You will design agent native retrieval and ranking systems, enabling LLM-driven workflows at scale with strict latency requirements. This role offers high ownership and opportunities to shape the future of AI at Nebius.

Qualifikationen

• 8+ years of experience in applied AI, ML, or software engineering.
• Proven track record shipping ML/AI systems to production at scale.
• Deep experience with search, retrieval, ranking, or recommender systems.
• Strong understanding of modern deep learning, especially transformers and embeddings.
• Experience with LLM integrated or knowledge intensive systems.
• Experience designing evaluation frameworks and metrics for ML systems.
• Strong programming skills in Python and at least one of Go, C++, or similar.
• Ability to operate in a fast moving, product driven environment with high ownership and autonomy.

Aufgaben

• 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
• Define and implement new evaluation paradigms and metrics for agentic systems, where correctness is not reducible to clicks
• 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
• Work closely with engineering to deploy systems in high throughput, low latency environments
• Own ambiguous problems end to end and contribute to product and research direction
• Mentor engineers and help raise the technical bar of the team

Kenntnisse

Applied AI

ML in production

Search systems

Transformers & embeddings

LLMs integration

Python

Go/C++

Autonomy

Jobbeschreibung

Nebius is building a full-stack AI cloud platform and seeks a Staff or Principal Applied AI Researcher to own key parts of the applied AI research direction and system design.

You will design agent native retrieval and ranking systems, enabling LLM-driven workflows at scale with strict latency requirements. This role offers high ownership and opportunities to shape the future of AI at Nebius.