Security represents the most critical priorities for our customers in a world awash in digital threats, regulatory scrutiny, and estate complexity. Microsoft Security aspires to make the world a safer place for all. We want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization accelerates Microsoft’s mission and bold ambitions to ensure that our company and industry is securing digital technology platforms, devices, and clouds in our customers’ heterogeneous environments, as well as ensuring the security of our own internal estate. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams and leaders to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world.

The Azure AI Platform Security Team is looking for a Principal Security Engineer to help us responsibly shape the future of AI technology. If you have experience with security assessments, penetration testing, architecture reviews, and threat modeling in cloud environments—and are excited about securing the next generation of AI—we’d love to connect with you!

In this role, you’ll collaborate with product engineering teams to evaluate the security of their services and ensure we meet our security commitments. You’ll independently plan and lead security engagements, including identifying attack surfaces, setting up test environments, reviewing designs, and testing implementations for potential security risks. As you identify recurring issues or anti-patterns, you’ll be empowered to propose and drive improvements that raise the security baseline across multiple services by addressing root causes and eliminating entire classes of vulnerabilities.

This role focuses on the underlying platform, so we encourage experienced security engineers—even those new to AI—to apply. We value well-rounded team members who are curious, adaptable, and collaborative. Success in this role requires strong technical fundamentals, the ability to navigate ambiguity, a willingness to dive into unfamiliar domains, and the interpersonal skills to build trust across teams.

This is a US-based role and a flexible work opportunity that can be fully remote, hybrid, or full-time onsite.

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.

In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positively impact our culture every day.