Microsoft · 3 days ago
Principal Security Researcher
Redmond, WA
Full-time
Onsite
Senior Level, Lead/Staff
$140K/yr - $275K/yr
7+ years expMicrosoft is a technology company that aims to empower every person and organization on the planet. The Principal Security Researcher will investigate and analyze cybersecurity attacks to develop detection and prevention strategies, design machine learning systems, and manage incident responses to enhance product security.
Agentic AIApplication Performance ManagementArtificial Intelligence (AI)Business DevelopmentDevOpsInformation ServicesInformation TechnologyManagement Information SystemsNetwork SecuritySoftware
Responsibilities
Investigate, analyze, and learn from ongoing cybersecurity attacks in order to develop durable detection and prevention solution/strategies across the kill-chain or product/OS enhancements. Shares and leads within team. As part of this you will primarily be running telemetry-based attack investigations and threat hunting mixed with light reverse-engineering
Design, code, and maintain client-side and cloud machine learning and automation systems that powers cybersecurity protection in our products and services
Experiment with and apply large language models and agentic systems to protect our customers and improve our internal systems
Support the management of incidents by applying technical knowledge to diagnose and triage issues with a commitment to maintaining the quality of products and services. Takes notes during incidents and participates in postmortem and root-cause analysis processes
Work with other internal and external teams to forge new and improve existing partnerships that help mature the product
Qualification
Required
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
2+ years of experience with coding
1+ years of experience with language models or machine learning
1+ years leading security initiatives and publishing research
1+ years mentoring and guiding researchers
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role
This position will be required to pass the Microsoft background and Microsoft Cloud background check upon hire/transfer and every two years thereafter
Preferred
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 OS internals, hypervisors, and cloud security architectures
Experience in classical and deep learning machine learning methods
Company
Microsoft
Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.
10001+ employees
H1B Sponsorship
Microsoft has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (9192)
2024 (9343)
2023 (7677)
2022 (11403)
2021 (7210)
2020 (7852)
Funding
Current Stage
Public CompanyTotal Funding
$1MKey Investors
Technology Venture Investors
2022-12-09Post Ipo Equity
1986-03-13IPO
1981-09-01Series Unknown· $1M
Leadership Team
Satya Nadella
Chairman and CEO
Vukani Mngxati
Chief Executive Officer - Microsft South Africa
Recent News
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