Principal Security Engineer - MAI Data, Privacy, and Security, Microsoft AI - Copilot
 Microsoft | |
 United States, California, Mountain View | |
 May 29, 2025 | |
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OverviewMicrosoft is at the forefront of AI innovation, tackling some of the most complex and significant AI challenges of our time. Our vision is ambitious-to deliver systems with genuine artificial intelligence capabilities across agents, applications, services, and infrastructure. The Security Engineering team within MAI ensures our advancements in AI are secure and trustworthy. We integrate robust security measures directly into our platforms, enabling secure and efficient incorporation of external data and services without compromising safety or privacy. We are looking for a Principal Security Engineer to lead security assessments and testing both internally and with external partners. You will partner closely with the product engineering team to ensure that good design decisions get made, identify risks and vulnerabilities, and design and implement solutions. Your role will ensure that Copilot and its integrations operate atop a robust security model that mitigates threats such as indirect prompt injection, unauthorized dataflows, and privacy breaches. An ideal candidate will have extensive experience in these areas, blending knowledge of novel attacks and defenses with judgment to help choose the best mitigations in a product context. 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.
ResponsibilitiesLead comprehensive risks assessments, including automated risk identification, controls validation, and threat modeling across networking, operating systems, and application layers. Identify security best practices, risks, and align remediations to vulnerabilities to drive remediation efforts effectively. Proactively identify and help remediate security risks through code and configuration changes. Collaborate closely with partner teams, facilitating their velocity by addressing and resolving underlying security issues. Develop and maintain metrics to measure security impact, reliability at both tactical and strategic levels. Provide security mentorship, fostering a culture of proactive security awareness and accountability. Contribute to secure software development by writing, reviewing, and advising on secure coding practices, particularly in C#, Python, or equivalent languages. | |