Imagine being part of the team that has delivered system initialization technologies that execute on more than a billion Windows-based system every time they are powered-on. The Secure Platform Foundation team is seeking a talented, highly motivated software engineer to drive innovations in this critical space. We’re looking for an enthusiastic candidate who can learn quickly, has strong design skills, broad interests, and isn’t afraid to dive into new or unfamiliar technologies. Our code operates at the intersection of hardware initialization and system software, specializing in foundational technologies that govern security throughout firmware and pre-kernel execution logic. You’ll ensure every device starts with a robust, tamper-resistant foundation, from the first instruction executed at power-on through handoff to the operating system. The team’s work also extends beyond traditional hardware to include enabling scalable cloud infrastructure, such as secure and efficient virtual machine provisioning in Azure, and pioneering techniques like rapid system updates with minimal downtime through advanced servicing technologies. Positioned at the critical boundary between silicon and software, this role offers exciting opportunities to influence system security, reliability, and performance across diverse platforms. As a Senior Software Engineer on our team, you will help drive innovations that will shape the foundational future of platform security for the Windows Operating System.

In Core OS, we are responsible for the Operating Systems that power Azure, Microsoft's Linux OS, the platforms for Windows Client, Xbox, and our Windows Server ecosystem – through all of these, we support every one of our cloud businesses and billions of customers around the world. In this era of ubiquitous computing, systems software excellence has never been more important for Microsoft. High quality, high-efficiency operating systems and platform components underpin everything we do as a company, from making our systems more reliable for our customers, to increasing our competitiveness by reducing COGS, to delivering new features and capabilities to delight customers – that’s all us!
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