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Senior Security Engineer and Principal Security Engineer

Microsoft· Penetration Testing
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Redmond, WA, Multiple Locations$119.8k - $234.7kFull-timePosted 2mo ago

About the role

The Windows Security team seeks hands-on security engineers with offensive security and security engineering focus to secure Windows products and devices. Responsibilities include designing mitigations, performing security reviews, and partnering with Windows product teams to strengthen OS security.

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 built by you and others
  • Be the security contact for teams building new innovative products and technologies in the next version of Windows and devices
  • Identify security vulnerabilities in a wide variety of key OS features such as network protocols, security features, and Microsoft devices
  • Leverage a broad and current understanding of security to devise new protections
  • Interact with the external security community and security researchers
  • Collaborate with product teams to improve security, and articulate the business value of security investments

Qualifications

  • Master's Degree in Statistics, Mathematics, Computer Science, or related field AND 3+ years experience in security or related field
  • OR Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND 4+ years experience in security or related field
  • OR equivalent experience.
  • Other Requirements: Ability to meet Microsoft, customer and/or government security screening requirements, including Microsoft Cloud Background Check

Skills

Required:C/C++penetration testingOS security fundamentals
Last updated Sep 17, 2026. Interested? Apply on the company site.

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