Principal Researcher
Core
Define multi-year vision and architecture for Windows OS search, context-aware indexing, semantic file retrieval, and on-device neural search systems.
Role type
Principal Researcher (Search & On-Device AI)
Builds
Production search systems, indexing pipelines, and AI-driven user experiences integrated into the Windows OS.
Domain
Operating Systems, Information Retrieval, On-Device Machine Learning
Deliverable
production ML models | product features
Required skills
Hybrid search architectures, Approximate Nearest Neighbor (ANN) algorithms, On-Device ML optimization, Systems Programming (C++/Rust), Hardware & Silicon Co-Design, Privacy-Preserving Computation, Strategic Ambiguity Navigation, Influence Without Authority, Executive Technical Communication
Preferred skills
Windows platform internals, Agentic workflows, Federated learning, Differential privacy
Technologies
ONNX Runtime, DirectML, CoreML, TensorRT, HNSW, DiskANN, BM25, C++17/20, Rust
Responsibilities
Define long-term architectural direction for Windows Search and indexing pipelines; Design algorithms for contextual and semantic graph retrieval; Optimize SLMs and embedding models for local execution on NPUs/GPUs; Partner with hardware vendors and product teams to ship innovations; Mentor senior researchers and engineers; Drive patent filings and publish in top-tier venues.
Seniority
Principal, strategy & mentorship