Job Description
The Cloud & AI 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. Microsoft is one of the largest enterprise service companies in the world. Cloud Security is a team within Microsoft Cloud + AI and the Office of the CISO focused on protecting Microsoft’s cloud environment at scale. We are looking for a Principal Software Engineer, Security AI to help build AI-powered security systems for Cloud Security. In this experienced individual contributor role, you will lead the architecture, design, and delivery of production AI services that combine large language models, agentic workflows, retrieval-augmented generation, knowledge graphs, multi-modal signal processing, and rigorous evaluation frameworks. You will work at the intersection of distributed systems, applied AI, cloud security, and responsible AI to create platform capabilities that improve detection, investigation, response, and proactive risk reduction across Microsoft’s cloud environment. This is an opportunity to shape how AI transforms security engineering across one of the world’s largest cloud platforms. The ideal candidate is a hands-on technical leader who has built and operated production AI or ML systems, understands large-scale cloud services, and can turn ambiguous security problems into reliable, measurable, and trustworthy AI-driven solutions. You will collaborate with engineering, applied science, threat intelligence, security operations, product, and partner teams across Cloud + AI to deliver systems that are secure by design, operationally excellent, durable and grounded in measurable platform impact. 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.
