# Principal Applied Scientist at Microsoft

- Company: Microsoft
- What the company does: Explore Microsoft products and services and support for your home or business. Shop Microsoft 365, Copilot, Teams, Xbox, Windows, Azure, Surface and more. Backed by Menlo.
- Company website: https://www.microsoft.com
- Type: Startups (AI role)
- Level: Principal and up
- Location: Redmond, WA, US; Mountain View, CA, US
- Work setup: On-site
- Posted: 2026-09-25
- Apply by: 2026-11-09
- Apply: https://microsoft.eightfold.ai/careers/job/1970393557002069
- Page: https://www.1752.vc/careers/jobs/microsoft-principal-applied-scientist/

## About the role

Identify emerging fraud tactics, adversary infrastructure, and evasion patterns across monetization flows and LLM-native systems through threat modeling, behavioral, graph-based, temporal, and cross-surface big data analysis. Assess high-risk assumptions and attack paths by forming explicit threat hypotheses, identifying observable signals, and validating risk through structured modeling, targeted experiments, and quantitative measurement.

Tags: Applied Sciences

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/microsoft-principal-applied-scientist/