Microsoft's Trust & Security Services (TSS) team is seeking a Software Engineer to join their security-focused organization. This role is part of Microsoft Security, which aims to make the world safer through end-to-end security solutions. The TSS team is responsible for critical security infrastructure, including PKI lifecycle management, CodeSign services, malware scanning, and software distribution systems that handle over 5B+ transactions monthly. You'll work on massive-scale cloud services that secure and distribute software to billions of Windows and Linux devices worldwide. The role offers unique engineering challenges in scale and diversity of workloads, from binary signing to AAA game distribution. This position combines security expertise with large-scale distributed systems engineering, making it perfect for engineers passionate about building robust, secure infrastructure that impacts billions of users. The role offers comprehensive benefits, professional growth opportunities, and the chance to work with cutting-edge security technology.