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Principal Security Engineer

Microsoft· Security Assurance
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United States$142.8k - $274.8kfull-timePosted 1mo ago

About the role

The Principal Security Engineer partners with engineering teams to drive strategic security initiatives across cloud, AI, and enterprise platforms, leading threat modeling and architecture reviews, and advancing AI-driven security assessment capabilities within Microsoft’s Regulated Industries Security Organization (RISO).

Responsibilities

  • Partner with engineering teams to identify and mitigate security risks early in the development lifecycle through threat modeling, security design reviews, and architecture assessments for cloud and AI-powered services.
  • Drive secure-by-design improvements by developing security guidance, reference architectures, and practical remediation strategies that help teams address systemic security challenges and architectural anti-patterns.
  • Influence security outcomes across high-impact Microsoft services by working directly with engineers, architects, and product leaders to prioritize risks and accelerate security improvements.
  • Leverage AI and automation capabilities to scale security assessments, improve risk identification, and increase security coverage across complex product portfolios.
  • Investigate emerging technologies, cloud architectures, and AI workloads to uncover novel attack paths, security weaknesses, and opportunities to strengthen Microsoft's security posture.
  • Champion security excellence by mentoring engineering teams, enabling self-service security capabilities, and fostering secure development practices across the organization.
  • Contribute to the evolution of Microsoft's security assessment methodologies, tooling, and processes to improve the effectiveness, consistency, and scalability of security reviews.

Qualifications

  • Master’s Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 4+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection OR Bachelor’s Degree in Statistics, Mathematics, Computer Science, Risk Management, Cyber Security, or related field AND 6+ years experience in software development lifecycle, large scale computing, threat modeling, cyber security, or anomaly detection OR equivalent experience.

Skills

Required:Threat modelingArchitecture reviewsSecure design guidance
Nice to have:AI-driven security

Benefits

  • Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay
Last updated Aug 27, 2026. Interested? Apply on the company site.

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