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Microsoft

Principal Security Researcher

Microsoft, Redmond, Washington, United States, 98052

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Overview

Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft’s mission to secure digital technology platforms, devices, and clouds in diverse environments, while safeguarding our own internal estate. Our culture emphasizes a growth mindset, excellence, and teamwork to bring the best each day. This Hybrid Position is located at our Microsoft office in Redmond, Washington. Relocation support will be provided, and successful candidates will need to relocate or reside within 50 miles of the field location. Join the Security Platform and AI Org and help shape the future of Microsoft’s defenses. Are you a systems-level thinker who can outmaneuver adversaries and ship protections at planet scale? Become an integral member of the Security Platform and AI team. Our mission is to ensure Microsoft’s security and AI tools have the highest bar for safety and security. Responsibilities

Lead advanced security research into threat management for new AI tools like Security Copilot and our security data lake Sentinel Graph. Design and validate mitigations by partnering with engineering teams to translate research findings into shipped protections. Investigate critical security issues (root cause, motivation, impact) and elevate findings to influence product and strategy decisions. Drive cross-functional collaboration with internal teams and external partners (industry, academia, government) to advance security standards. Publish responsibly and patent IP to strengthen Microsoft’s security leadership while balancing disclosure risk. Mentor and guide researchers and engineers, fostering technical growth and alignment with Microsoft’s security priorities. Influence organizational best practices by synthesizing research into actionable recommendations and driving adoption. Develop detection and hunting strategies leveraging telemetry, threat intelligence, and advanced analytics. Champion innovation in proactive defense, including AI-assisted security research and automation. Represent Microsoft externally through thought leadership, conference talks, and contributions to the security research community. Qualifications

Doctorate in Statistics, Mathematics, Computer Science or related field OR 7+ years experience in software development lifecycle, large-scale computing, modeling, cybersecurity, and/or anomaly detection. 7+ years in applied security research or application security 7+ years leading security initiatives with proven impact on engineering practices 7+ years mentoring and building security knowledge and practice within partner teams Other Requirements

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These includeMicrosoft Cloud Background Check: this position will be required to pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter. Additional or Preferred Qualifications

Doctorate in Statistics, Mathematics, Computer Science or related field OR 8+ years experience in software development lifecycle, large-scale computing, modeling, cybersecurity, and/or anomaly detection. 1+ years experience with generative AI/LLM frameworks for security applications 1+ years experience with regex, Kusto, and/or SQL for log analysis 7+ years experience publishing research outputs or contributing to security tooling Salary information: Security Research IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 per year, with location-specific variations. Some roles may be eligible for benefits and other compensation. Additional pay information available here: https://careers.microsoft.com/us/en/us-corporate-pay Microsoft is an equal opportunity employer. If you need assistance and/or a reasonable accommodation during the application process, read more about requesting accommodations.

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