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Senior Security Engineer and Principal Security Engineer (Multiple Positions)

United States, Washington, Redmond💼 Full-time🗓 2026-07-28 → 2026-09-25

Core

Build reusable agents and tools to expedite and improve the consistency and quality of security reviews for new Windows and devices; review features and code for security defects and architectural risk.

Role type

Senior/Principal Security Engineer (Security Research & Automation)

Builds

Reusable security agents and automated tools for security reviews

Domain

Operating Systems Security / Native Application Security

Deliverable

production ML models | infrastructure

Required skills

vulnerability identification in operating systems, native (C/C++) application security, security research, bug exploitation, bypassing security mitigations, automated security tooling, code review for security defects, architectural risk assessment

Preferred skills

security research, vulnerability discovery, interacting with external security community and researchers

Technologies

C, C++, automated security tools, agents

Responsibilities

Build reusable agents and tools to expedite and improve the consistency and quality of security reviews; Review features and code for security defects and architectural risk using agents and automated tools; Be the security contact for teams building new innovative products and technologies in the next version of Windows and devices; Interact with the external security community and security researchers; Collaborate with product teams to improve security, and articulate the business value of security investments

Seniority

Senior/Principal, hands-on IC with research focus

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