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Job Details
Posted date: Dec 10, 2025
There have been 32 jobs posted with the title of Principal Security Engineer all time at Microsoft.There have been 32 Principal Security Engineer jobs posted in the last month.
Category: Penetration Testing
Location: Redmond, WA
Estimated salary: $222,050
Range: $139,900 - $304,200
Employment type: Full-Time
Work location type: 3 days / week in-office
Role: Individual Contributor
Description
OverviewThe Cloud & AI organization accelerates Microsoft’s mission is 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. Microsoft is one of the largest enterprise service companies in the world. Are you interested in identifying and exploiting security vulnerabilities that impact hundreds of millions of users across the world? Join the Microsoft Red Team (MRT) organization, where you will emulate real-world advanced persistent threats against Microsoft. Our mission is to ensure Microsoft is prepared to face and respond to even the most determined adversaries by exploring innovative ways to identify and prevent security flaws. MRT is seeking talented individuals focused on identifying, exploiting, and emulating real-world threats, ensuring the security and resilience of Microsoft. As a Principal Security Engineer you will lead operations and collaborate with other experienced red teamers in identifying and exploiting vulnerabilities across all layers of services, including application, cloud, network, hardware, and operational security domains. You will work closely with developers and security personnel from multiple teams across Microsoft. Additionally you will be responsible for fostering the team's growth both technically and culturally, as we build and retain the next generation of top talent at Microsoft. By adopting the tactics, techniques, and procedures of potential attackers, you will provide critical insights that empower our security teams to strengthen defenses and protect against the evolving landscape of digital threats. 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. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.
Responsibilities
Discover and exploit vulnerabilities end-to-end in order to assess the security of servicesExecute and lead Red Team operations using real world adversarial tactics and techniques to validate a production service's ability to detect, investigate, and respondResearch and experiment with new and emerging adversarial techniquesLead security change across the company through articulating risks and partnering for correct solutionsPrototype tools and techniques to scale and accelerate offensive emulation and vulnerability discoveryCollaborate with Blue Teams to improve readiness and produce solutions for defenders and customersAnalyze simulated adversary tactics and communications, enriching our defensive tactics and threat intelligenceEnhance Security Incident Response by providing expert insight and help when assisting Microsoft's defensive actions against adversaries.Embody our culture and values
Qualifications
Required qualifications:
Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND 6+ years experience in security or related fieldOR equivalent experienceOR Master's Degree in Statistics, Mathematics, Computer Science, or related field AND 4+ years experience in security or related field6+ years of experience in identifying security vulnerabilities, software development lifecycle, large-scale computing, modeling, cyber security, or anomaly detection6+ years of experience with coding or scripting in languages such as C#, Python, C++, Go, PowerShell, .NET, Rust, or other comparable programming languages
Other Requirements:
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter.
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Penetration Testing IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $188,000 - $304,200 per year.
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
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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