The Windows Endpoint Security Platform engineering team is seeking a Software Engineer IC4 to help build a next‑generation security framework that empowers an industry‑wide ecosystem of security partners. This work is central to Microsoft’s strategy to modernize endpoint security through a more resilient, extensible, and open platform that supports broad partner innovation while strengthening protection for customers.

In this role, you will design and implement a new user‑mode based architecture that enables partners to deliver robust endpoint protection solutions without relying on kernel‑mode drivers, representing a significant step forward in improving operating system (OS) reliability and reducing security risk. You will contribute to a platform that must deliver exceptional performance, reliability, and a comprehensive set of capabilities to defend against evolving enterprise threats.

This initiative is a top priority within Microsoft and has high visibility at both executive and industry levels. You will collaborate closely with teams across Windows and the broader security ecosystem, helping shape the future of endpoint protection for millions of customers worldwide. Within Core Operating System (Core OS), the team is responsible for the operating systems that power Azure, Microsoft’s Linux operating system (OS), the platforms for Windows Client and Xbox, and the Windows Server ecosystem. Through these efforts, Core OS supports all cloud businesses and billions of customers globally, with high‑quality and high‑efficiency operating systems and platform components that improve reliability, reduce cost of goods sold (COGS), and enable new features and capabilities.

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

Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.