The Advanced Reasoning Group is hiring a Principal Applied Scientist at Mountain View, CA, or Redmond, WA.

The team is responsible for creating and delivering cutting-edge reasoning technologies that drive business outcomes for Microsoft and its customers built on our partnerships across the org. We are looking for a Principal Applied Scientist to deliver a state-of-the-art shopping knowledge graph to power amazing shopping experiences.

In this role you will have the opportunity to solve modeling problems around shopping knowledge graph. You’ll leverage multimodal techniques, facets, LLM-based generative methods and agentic process to curate and improve the shopping graph, to uplevel the shopping catalog.

You will  need to ensure the approach is scalable, so optimization techniques such as SLM investment is needed. You’ll also have opportunity to build innovative shopping experiences using the rich catalog and agentic systems, e.g. build a deep research shopping agent, a catalog agent, and related ecosystems.

Starting January 26, 2026, Microsoft AI (MAI) employees who live within a 50-mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week. This expectation is subject to local law and may vary by jurisdiction.

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.