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 Microsoft Security AI team is responsible for defending Microsoft and our customers through applied AI innovation. Our culture is centered on embracing a growth mindset, a theme of inspiring excellence, and encouraging teams to bring their best each day. In doing so, we create life-changing innovations that impact billions of lives around the world. Defending Microsoft’s complex environment provides a unique opportunity to build and evaluate autonomous defense and offense through emerging generative AI capabilities. Microsoft understands and learns from its own defensive and offensive expertise, including via teams like Microsoft’s Threat Intelligence Center and Microsoft’s Red Team, and can build a unique knowledge graph describing the relationship between risk, investigation, and response. This data, built over Microsoft’s complex digital estate, along with Microsoft AI forms the foundation for innovative solutions to defend Microsoft. 

We are looking for a Senior Security Researcher to uncover, design, and codify full-scope attack chains that span cloud services and enterprise endpoints. Real-world tactics—from identity platforms and Windows workloads to multi-cloud control planes—will be transformed into reproducible playbooks and code modules for an AI driven simulation framework. The scenarios you create will generate high-fidelity telemetry that drives blue-team analytics, autonomous investigation agents, and detection research across the company. Acting as a hands-on red-team specialist, you will automate complex campaigns at a scale, continuously expand our technique library, and collaborate with applied scientists to turn the resulting signals into defensive insights. 

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.