Job Details
Posted date: Nov 18, 2025
There have been 45 jobs posted with the title of Principal Security Researcher all time at Microsoft.There have been 45 Principal Security Researcher jobs posted in the last month.
Category: Security Research
Location: Multiple Locations, Multiple Locations
Employment type: Full-Time
Work location type: 3 days / week in-office
Role: Individual Contributor
Description
OverviewSecurity 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 and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world. We are seeking an innovative security researcher with experience in cloud and AI security to help build world-leading solutions that keep customers ahead of cyber threats. In this role, you will drive advanced research in AI and cloud security, deliver security solutions from posture management to runtime protection, and collaborate with top security experts, data scientists, and cross-functional teams at Microsoft. We value diversity and welcome candidates with different experiences and perspectives. If you are a team player and dedicated to developing products in partnership with customers, we invite you to consider joining our team. Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.
Responsibilities
• Conduct data-driven research that produces new insights, theories, algorithms, and prototypes that advance Cloud and AI threat protection.
• Investigate, analyze, and learn from security researchers, attackers, and real incidents to develop durable protection strategies across the entire kill-chain.
• Demonstrate leadership in an exceptionally challenging and rewarding environment and influence the organization.
• Collaborate with multiple security research teams across Microsoft and work directly with senior leaders to protect Microsoft and its customers against threats.
• Work closely with product and engineering managers, as well as with leading data scientists and various experts to bring new technologies and mature them from conceptualization to product.
• Attract and cultivate future talents through various programs with an emphasis on diversity and inclusion.
Qualifications
B.Sc./M.Sc./Ph.D. degree in Computer Science or a related technical discipline or equivalent nonacademic experience12+ years of industry experience.Strong understanding of cyber security.Experience in Cloud Security. Excellent interpersonal leadership, and mentoring skills and ability to drive clear cross-team understandings.Preferred Qualifications:
Knowledge in AI security (plus)
This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.
Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.
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