Microsoft Security Response Center (MSRC) is seeking a Principal Software Engineer to join their mission of protecting customers from online threats. This role combines full-stack engineering with security expertise, working on critical security initiatives that impact billions of users worldwide. The position offers competitive compensation ($137,600 - $267,000) and comprehensive benefits. You'll lead architectural decisions, mentor team members, and drive security best practices while working with cutting-edge technologies. The role provides an opportunity to work remotely with a diverse, talented team focused on customer protection and security innovation. Microsoft's inclusive culture emphasizes growth mindset, innovation, and collaboration, making it an ideal environment for experienced engineers looking to make a significant impact in cybersecurity.