Microsoft Security Engineer jobs

Security engineers here do offensive work and product security on Windows, Azure and M365 — pen testing, red teaming, code audit and mitigation design — plus SOC and detection engineering for Microsoft’s internal estate. Reqs skew to offensive security, security research and security operations rather than generalist AppSec, and 2026 postings stress AI and agentic tooling. Several cleared reqs sit in Reston and Redmond.

Microsoft runs security as its own ‘Security Engineering’ profession with four disciplines (Security Research, Penetration Testing, Security Operations Engineering, Security Assurance) and a ladder from Security Engineer IC2 through II (IC3), Senior (IC4) and Principal (IC5); named teams in current reqs include Windows Security, the Microsoft Red Team, Security Operations Engineering, Microsoft Security Threat Response and the Secure Future Initiative engineering program.