Principal Software Engineer

Microsoft's Windows Endpoint Security Platform engineering team is seeking a Principal Engineer to spearhead the development of their next-generation security framework. This is a critical role focused on modernizing the endpoint security ecosystem to enhance resilience and openness. The position involves designing and implementing a new platform that enables partners to deploy endpoint solutions in user-mode, requiring both performance and reliability to counter enterprise threats.

The role is part of Microsoft's Core OS division, which is responsible for operating systems powering Azure, Microsoft's Linux OS, Windows Client, Xbox, and the Windows Server ecosystem. This division supports Microsoft's cloud businesses and serves billions of customers globally. The position offers a unique opportunity to work on high-priority initiatives with executive-level visibility and industry-wide impact.

As a Principal Software Engineer, you'll be expected to bring 6+ years of technical engineering experience and strong expertise in languages like C++, C#, and Rust. The role requires proven experience in driving software platform architecture projects and guiding complex initiatives from planning through execution. You'll collaborate with Microsoft Virus Initiative partners, establish technical strategies, and lead cross-functional teams.

The position offers competitive compensation ranging from $137,600 to $267,000 per year (varying by location), along with comprehensive benefits including industry-leading healthcare, educational resources, and parental leave. This is an excellent opportunity for a seasoned engineer looking to make a significant impact on Microsoft's security infrastructure while working in a collaborative, innovative environment that emphasizes growth mindset and technical excellence.

The hybrid work environment (up to 50% work from home) provides flexibility while maintaining collaborative opportunities. The role involves minimal travel (0-25%) and offers the chance to work on cutting-edge security solutions that protect Microsoft's vast user base. If you're passionate about security, system architecture, and leading technical innovations at scale, this role offers an exceptional opportunity to shape the future of endpoint security.