Microsoft Logo

Microsoft

Principal Security Engineer

Posted 9 Days Ago
Be an Early Applicant
In-Office or Remote
2 Locations
143K-304K Annually
Senior level
In-Office or Remote
2 Locations
143K-304K Annually
Senior level
Conduct vulnerability research across operating systems, cloud platforms, and virtualization technologies through design and code review, fuzzing, variant analysis, and reverse engineering. Develop platform mitigations, security tooling, detection capabilities, and systemic protections. Partner with engineering teams to improve secure development practices, lead complex security initiatives, track emerging attack techniques, and mentor peers.
The summary above was generated by AI
Overview

The Microsoft Offensive Research & Security Engineering (MORSE) team is looking for a Principal Security Engineer to help secure Microsoft’s products and devices.

MORSE is responsible for securing Microsoft’s operating systems and platform technologies, cloud platforms, and virtualisation technologies that support the daily needs of over a billion customers worldwide.
In this role, you will work across the discovery and mitigation of security vulnerabilities — identifying weaknesses in systems, understanding their impact, and helping drive protections that improve the security of Microsoft platforms at scale. You will partner with engineers across Windows, Azure, and platform infrastructure to architect security solutions and influence the way systems are designed and built.
This role is well suited to engineers who enjoy deep systems work, solving complex problems, and delivering high impact security outcomes.

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
  • Drive identification and analysis of security vulnerabilities across operating system and platform components, including design review, code review, fuzzing, and variant analysis
  • Develop and influence mitigations and protections that reduce risk across platforms, improving resilience against entire classes of vulnerabilities
  • Advocate for security with engineering teams to integrate security into the development lifecycle, influence design decisions and improve secure engineering practices. Autonomously drive coordination and collaboration across broad groups across Microsoft. Devise and advocate for broadly applicable solutions.
  • Contribute to the development and scaling of security tooling, detection capabilities, or analysis techniques that enable broader coverage and earlier detection of vulnerabilities
  • Partner across organizations to translate security findings into systemic improvements and measurable security outcomes
  • Stay current on attacker techniques, emerging vulnerability classes, and industry trends, applying this knowledge to improve Microsoft’s security posture
  • Provide technical leadership within and across teams, contributing to direction setting, problem decomposition, and delivery of complex security initiatives. Mentor and coach peers on new approaches and best practices. Coordinate across teams and leads resolution of vulnerabilities, threat attacks, and security issues.

Qualifications
Required Qualifications:
  • Master's Degree in Statistics, Mathematics, Computer Science, or related field AND 4+ years experience in security or related field OR Bachelor's Degree in Statistics, Mathematics, Computer Science, or related field AND 6+ years experience in security or related field 
    • OR equivalent experience.

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. 

Preferred Qualifications:

  • Public or internal track record of relevant security research
  • Understanding of operating system security fundamentals, including kernel or low level platform components
  • Experience performing vulnerability research, including code review, fuzzing, reverse engineering, or exploit development
  • Experience developing or applying mitigations, such as memory safety protections, sandboxing, or platform hardening techniques 
  • 4+ years experience in security-related elements of software engineering or in another security-related field
  • 4+ years experience with systems level programming languages such as C, C++, or Rust

Penetration Testing IC5 - The typical base pay range for this role across the U.S. is USD $142,800 - $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.

HQ

Microsoft Redmond, Washington, USA Office

1 Microsoft Way, Redmond, WA, United States, 98052

Microsoft Bellevue, Washington, USA Office

Bellevue, United States

Microsoft Issaquah, Washington, USA Office

Issaquah, United States

Microsoft Kirkland, Washington, USA Office

Kirkland, United States

Microsoft Mercer Island, Washington, USA Office

Mercer Island, United States

Microsoft Sammamish, Washington, USA Office

Sammamish, United States

Microsoft Seattle, Washington, USA Office

Seattle, United States

Similar Jobs

2 Days Ago
Easy Apply
Remote or Hybrid
USA
Easy Apply
176K-251K Annually
Senior level
176K-251K Annually
Senior level
Cloud • Information Technology • Security • Software • Cybersecurity
Partner with sales teams to win strategic data security opportunities. Present technical solutions, gather customer requirements, lead product evaluations, configure solutions, and design evaluation test plans. The role requires extensive pre-sales experience, security and networking expertise, data protection and web technology knowledge, and collaboration across matrixed go-to-market and partner teams.
Top Skills: Ai ToolsCybersecurityData ProtectionNetworkingSaaSSaseWeb TechnologiesZscaler Zero Trust Exchange
7 Days Ago
Remote
United States
90K-230K Annually
Senior level
90K-230K Annually
Senior level
Consulting • Design
Protect Air Force modernization efforts by assessing legacy and modernized applications, conducting security audits and risk analyses, implementing RMF, ATO, and cATO processes, authoring security controls and authorization evidence, researching emerging threats, and coaching government engineering teams on secure software development and compliance.
Top Skills: Authorization To Operate (Ato)Cloud InfrastructureContinuous Authorization To Operate (Cato)Infrastructure As CodeRisk Management Framework (Rmf)Web DevelopmentWeb Testing Frameworks
One Month Ago
In-Office or Remote
United States
150K-190K Annually
Expert/Leader
150K-190K Annually
Expert/Leader
Digital Media • Fintech • Information Technology • Machine Learning • Financial Services • Cybersecurity • Automation
Serves as the senior technical authority for enterprise browser data protection and security. Owns architecture, roadmap, standards, lifecycle, browser-based DLP controls, integrations, automation, and operational support. Leads complex troubleshooting, major incident response, root-cause analysis, runbook development, and continuous improvement. Partners across cybersecurity, identity, endpoint, network, cloud, risk, compliance, and vendor teams while mentoring engineers and influencing enterprise security design.
Top Skills: Active DirectoryAzure DevopsCasbChrome Enterprise PremiumCisco Secure AccessCloud PlatformsCrowdstrikeCyberarkDigital GuardianDnsEntra IdForcepoint DlpGitGitIslandJAMFMecm/SccmMenlo SecurityMicrosoft Defender XdrMicrosoft Edge For BusinessMicrosoft GraphMicrosoft IntuneMicrosoft Purview DlpMicrosoft SentinelNetskope DlpOktaPalo AltoPalo Alto Prisma BrowserPing IdentityPowershellPythonRest ApisSaseSplunkSwgSymantec DlpTaniumTerraformTls/HttpsVpnZscalerZtna

What you need to know about the Seattle Tech Scene

Home to tech titans like Microsoft and Amazon, Seattle punches far above its weight in innovation. But its surrounding mountains, sprinkled with world-famous hiking trails and climbing routes, make the city a destination for outdoorsy types as well. Established as a logging town before shifting to shipbuilding and logistics, the Emerald City is now known for its contributions to aerospace, software, biotech and cloud computing. And its status as a thriving tech ecosystem is attracting out-of-town companies looking to establish new tech and engineering hubs.

Key Facts About Seattle Tech

  • Number of Tech Workers: 287,000; 13% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Amazon, Microsoft, Meta, Google
  • Key Industries: Artificial intelligence, cloud computing, software, biotechnology, game development
  • Funding Landscape: $3.1 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Madrona, Fuse, Tola, Maveron
  • Research Centers and Universities: University of Washington, Seattle University, Seattle Pacific University, Allen Institute for Brain Science, Bill & Melinda Gates Foundation, Seattle Children’s Research Institute

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account