Senior Security Researcher

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 Research 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 and leaders 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 has the opportunity to 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 join our applied science team to reshape how we defend Microsoft. You will leverage LLMs and agentic systems to uncover and operationalize new adversarial techniques while addressing gaps in red team capabilities and supporting autonomous red team campaigns. You will use various approaches, including the analysis of structured and unstructured data such as code repositories and operational data, to identify new capabilities, assess design flaws and vulnerabilities, and expand our TTP catalog. You will also prototype and validate exploitation methods while helping design LLM-based workflows for TTP discovery and operationalization, advancing offensive data analysis and strengthening red team strategies. For those passionate about making a meaningful impact in the security industry, don’t miss this opportunity to join the team working on the latest AI technology and applicability.

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.