Microsoft
Senior Security Engineer and Principal Security Engineer (Multiple Positions)
$120K–$304K
Redmond, WA +1 · On-site · Principal · Full-time · Posted Sep 16, 2026
- Location
- Redmond, WA
United States - Experience
- Required: 3+ years with a master's degree, or 4+ years with a bachelor's degree, in security or a related field; or equivalent experience. Preferred: 4+ years with a master's degree or 6+ years with a bachelor's degree; or equivalent experience. Also preferred: 2+ years identifying vulnerabilities in operating systems and/or native (C/C++) applications; 5+ years in software engineering or security-related engineering.
- Education
- Master's or bachelor's degree in Statistics, Mathematics, Computer Science, or a related field; or equivalent experience.
About the job
Secures Windows client and server products by discovering vulnerabilities, conducting security reviews, and developing tools and mitigations with product engineering teams.
What you'll do
- Build reusable agents and tools to improve security reviews; use them to identify security defects and architectural risks.
- Find vulnerabilities in Windows OS features and devices, and develop protections and mitigations.
- Partner with product teams and external security researchers to improve security and communicate the value of security investments.
What they ask for
- Master's degree in Statistics, Mathematics, Computer Science, or a related field and 3+ years of security or related experience; or bachelor's degree in those fields and 4+ years; or equivalent experience.
- Meet Microsoft, customer, and/or government security screening requirements, including the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.
Nice to have
- 2+ years identifying vulnerabilities in operating systems and/or native (C/C++) applications; 5+ years in software engineering or security-related engineering.
- Demonstrated security research and vulnerability discovery experience; experience exploiting bugs and bypassing OS security mitigations; familiarity with Microsoft Windows architecture.
Pay
USD $119,800 - $234,700 per year (base salary); USD $160,200 - $261,000 per year (base salary); USD $142,800 - $274,800 per year (base salary); USD $188,000 - $304,200 per year (base salary)
Tools
C/C++, Microsoft Windows
Model-written summary · the original posting is authoritative