Microsoft Entra Edge & Quality Services and Programs is seeking a Principal Software Engineer to enhance Quality, Resilience, and Reliability solutions within Microsoft Entra. This role focuses on improving authentication and identity services that underpin Microsoft's core products, processing millions of requests per second with 99.99% availability targets. You'll work on advancing change tracking, safe deployment systems, and next-generation Copilot-assisted incident management. The position involves direct partnership with divisional executives and requires expertise in distributed systems, service reliability, and technical leadership. The role offers competitive compensation, comprehensive benefits, and the opportunity to work on critical infrastructure powering hundreds of billions of daily authentications. As part of Microsoft's inclusive culture, you'll contribute to innovative solutions while collaborating with cross-functional teams to drive organizational success.