Principal Software Engineer

Join Microsoft's Substrate SHIELD Team in protecting over a billion users worldwide. As a Principal Software Engineer, you'll be at the forefront of cybersecurity, working to protect Microsoft 365, the world's largest productivity service. The role involves building security strategies, developing prototypes, and driving architectural improvements to enhance security at M365 scale. You'll work in a hybrid environment (3 days onsite in Redmond) with a team dedicated to staying ahead of global security challenges. The position offers competitive compensation ($137,600 - $267,000), comprehensive benefits, and the opportunity to impact security solutions used by individuals and businesses worldwide. You'll collaborate with high-performing engineering teams, lead complex projects, and contribute to Microsoft's mission of empowering every person and organization to achieve more. This role combines technical expertise with leadership, requiring both deep security knowledge and the ability to mentor team members.