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.

The Microsoft Defender for Endpoint (MDE) team is dedicated to protecting consumers and enterprises alike from cyber-attacks. Our mission is to safeguard every user with innovative proactive protection, detection, and response technologies, aiming to stay ahead of malicious actors and anticipating the threats of the future. 

Would you like to spend your days meaningfully impacting society?  Are you an exceptional engineer with a deep understanding of the Windows operating system Is your copy of Windows Internals front and center on your bookshelf.  Do you thrive on developing architectural solutions from the ground up, focusing on fundamentals such as performance, reliability, and extensibility?  Become an integral member of the Microsoft Defender for Endpoint (MDE) team. 

We are looking for a highly driven and motivated Principal Software Engineer to champion the highest levels of code quality across the breadth of our Windows Client codebase as we build the next generation of endpoint protection.  This includes championing fundamentals such as performance and reliability, ensuring secure coding patterns, advancing usage of memory and type safe languages all while driving foundational changes throughout the entire Defender stack.  This position provides the potential for tremendous personal and career growth across many dimensions.  You’ll have the opportunity to work across divisional boundaries and develop a broad understanding of Microsoft’s business while making a meaningful impact on society. 

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.