CoreAI is at the forefront of Microsoft’s mission to redefine how software is built and experienced. We are responsible for building the foundational platforms, services, programming models, and developer experiences that power the next generation of applications using Generative Artificial Intelligence (AI). Our work enables developers and enterprises to harness the full potential of AI to create intelligent, adaptive, and transformative software. 

The 1ES (One Engineering System) team is responsible for enabling the world's best engineering teams with world-class tools and systems that help them ship products their customers love. With software development quickly evolving to serve both developers and the AI Agents they leverage, having reliable and efficient engineering systems is more critical than ever.

We are seeking a Software Engineering II in the build team who will play a key role in enhancing developer productivity and efficiency. Your responsibilities will include accelerating large-scale builds for Microsoft’s largest codebases by working on file monitoring, caching, distributed systems, scheduling algorithms, and resource optimization. Our team’s products run on Linux, macOS, and Windows. Your tasks will span from low level eBPF programs to leveraging AI to perform analysis of large-scale data analysis of our engineering systems to steer future investments. If you are passionate about software engineering, are excited by constantly learning in an ever-changing environment, and above all love to focus on customers and building products they love – we want to hear from you!

Microsoft’s mission is to empower every person and every organization on the planet to achieve more. As employees we come together with a growth mindset, innovate to empower others, and collaborate to realize our shared goals. Each day we build on our values of respect, integrity, and accountability to create a culture of inclusion where everyone can thrive at work and beyond.