[Remote] Principal AI Security Researcher

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Note: The job is a remote job and is open to candidates in USA. 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. 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 Skills • 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 • 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 Overview • Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services. It was founded in 1975, and is headquartered in Redmond, Washington, USA, with a workforce of 10001+ employees. Its website is https://www.microsoft.com. Company H1B Sponsorship • Microsoft has a track record of offering H1B sponsorships, with 9192 in 2025, 9343 in 2024, 7677 in 2023, 11403 in 2022, 7210 in 2021, 7852 in 2020. Please note that this does not guarantee sponsorship for this specific role. Apply To this Job Company : Microsoft Salary : 140K–275K a year  

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