Principal AI Security Researcher jobs in United States
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Microsoft · 7 hours ago

Principal AI Security Researcher

Microsoft is seeking a Principal AI Security Researcher for their Sentinel Platform NEXT R&D labs, which focuses on developing AI-native security products. The role involves leading applied research in AI and machine learning for cybersecurity, collaborating with various teams to translate scientific advances into scalable solutions.

Agentic AIApplication Performance ManagementArtificial Intelligence (AI)Business DevelopmentDevOpsInformation ServicesInformation TechnologyManagement Information SystemsNetwork SecuritySoftware
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

Security AI Research: be the security expert to our AI-focused team, helping evaluate our systems on real data, improve system inputs, triage and investigate AI-based findings, leverage AI and security experience to incubate and transform our products, educate applied scientists in cybersecurity
Collaboration: Partner with engineering, product, and research teams to translate scientific advances into robust, scalable, and production-ready solutions
AI/ML Research: design, development, and analysis of novel AI and machine learning models and algorithms for security and enterprise-scale applications
Experimentation & Evaluation: Design and execute AI experiments, simulations, and evaluations to validate models and system performance, ensuring measurable improvements
Customer Impact: Engage with enterprise customers and field teams to co-design solutions, gather feedback, and iterate quickly based on real-world telemetry and outcomes

Qualification

CybersecurityAI/ML ResearchSoftware Development LifecycleLarge-Scale ComputingThreat AnalysisVulnerability ResearchAnomaly DetectionML LifecyclePythonC#C++RustJavaScript/TypeScriptPen-TestingCustomer EngagementAutonomyCollaboration

Required

Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 3+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR Master's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 4+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 6+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR equivalent experience
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 background and Microsoft Cloud background check upon hire/transfer and every two years thereafter

Preferred

Doctorate in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 5+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR Master's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 8+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field AND 12+ years experience in software development lifecycle, large-scale computing, threat analysis or modeling, cybersecurity, vulnerability research, and/or anomaly detection
OR equivalent experience
5+ years of experience in cybersecurity, AI, software development lifecycle, large-scale computing, modeling, and/or anomaly detection
5+ years of professional experience in security operations, pen-testing, researching cyber threats, understanding attacker methodology, tools, and infrastructure
Demonstrated autonomy and success driving zero-to-one (0→1) initiatives
ML background and hands-on experience
Experience with ML lifecycle: model training, fine-tuning, evaluation, continuous monitoring, and more
Coding ability in one or more languages (e.g., Python, C#, C++, Rust, JavaScript/TypeScript)
Familiarity and previous work in the field of cybersecurity (e.g., threat detection/response, SIEM/SOAR, identity, endpoint, cloud security) and familiarity with analyst workflows

Company

Microsoft

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Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.

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
Represents job field similar to this job
Trends of Total Sponsorships
2025 (9192)
2024 (9343)
2023 (7677)
2022 (11403)
2021 (7210)
2020 (7852)

Funding

Current Stage
Public Company
Total Funding
$1M
Key Investors
Technology Venture Investors
2022-12-09Post Ipo Equity
1986-03-13IPO
1981-09-01Series Unknown· $1M

Leadership Team

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Satya Nadella
Chairman and CEO
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Vukani Mngxati
Chief Executive Officer - Microsft South Africa
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Company data provided by crunchbase