The Microsoft Windows Security team is seeking Senior and Principal Security Engineers to enhance the security of Microsoft Windows products and devices. This role focuses on offensive security and security engineering, requiring hands-on experience with native code and penetration testing. The team is responsible for conducting security design reviews, code reviews, and vulnerability research to mitigate risks. Successful candidates will work closely with product engineering teams to develop defenses against cybersecurity threats.

• 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 the same fields AND 4+ years experience in security or related field OR equivalent experience.
• Ability to meet Microsoft, customer and/or government security screening requirements.
• 2+ years identifying vulnerabilities in operating systems and/or native (C/C++) applications.
• 5+ years of experience in a software engineering or security-related engineering.
• Demonstrated experience in security research, especially around vulnerability discovery.
• Experience exploiting bugs and bypassing security mitigations in operating systems.
• Familiarity with Microsoft Windows architecture.

• Participate in security reviews to identify and mitigate risk in Microsoft products.
• Be the security contact for teams building new innovative products and technologies.
• Identify security vulnerabilities in key OS features such as network protocols and security features.
• Leverage a broad 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.

• Employees at Microsoft are often offered comprehensive, “world-class” benefits—including health and mental-wellness programs, competitive pay with bonuses and stock awards, and retirement/savings options. Time-off and flexibility are common, with generous vacation and holidays, parental and caregiver leave, and flexible work schedules, alongside learning support, employee resource groups, product discounts, and matching-gifts/volunteering programs. Specific benefits can vary by region.