Microsoft is at the forefront of a new era in productivity, and Microsoft 365 Copilot is pushing the boundaries of AI. By combining large language models, Microsoft Graph, and the web, Copilot is transforming how work gets done, empowering individuals and enterprises to achieve more with intelligent, contextual assistance. We are a small, nimble team committed to advancing next-generation agentic experiences that scale impact and innovation across M365 Copilot.

We are looking for Principal Software Engineer who is passionate about bridging cutting-edge AI research with practical engineering solutions. In this role, you will be responsible for designing and developing core systems that enable Copilot agents to operate intelligently and efficiently in real-world enterprise scenarios. You’ll collaborate closely with cross-functional teams, including researchers, product managers, and engineers to rapidly prototype new ideas, integrate them into production systems, and deliver meaningful value to users.

This opportunity is particularly well-suited for engineers who have experience building foundational developer platforms and cross-platform systems. You’ve likely worked on universal runtime environments, complex SDKs, or infrastructure that powers intelligent, scalable applications. Your ability to understand system-level challenges and architect solutions that work seamlessly across various platforms will be critical to success. Experiences involving Retrieval-Augmented Generation and LLM is a plus.

If you're excited about pushing the boundaries of what intelligent agents can do, and you thrive at the intersection of AI, platform engineering, and product innovation, then this is the right role for 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.