The Natural Language Web (NLWeb) team, part of the Office of the CTO (Chief Technology Officer) for Microsoft, is looking for a Principal Software Engineer with proven experience and a keen interest in the area of Artificial Intelligence (AI) and who can lead our team in the development of cutting-edge solutions, with the goal of reshaping the internet as we transition to an agentic world. NLWeb is a lightweight reference implementation and open protocol, enabling the integration of a chat interface using conventional programming languages to new and existing applications. NLWeb combines natural language prompts, traditional code, and embeddings-based memory to unlock new potential and add value to applications with AI. We are looking for someone who is very scrappy and hands-on, is willing to run fast and figure out new technologies, and can build out initial investigations/POCs (point of contact) and then own/contribute the final design and development of the product/app. The ideal candidate should have experience building and delivering scalable distributed/web services, leading and growing engineers, and be passionate about engineering. Successful candidates should have the ability to ramp up quickly on new technologies and adopt solutions within the company or from the Open-Source community. Microsoft's mission is to empower every person and every organization on the planet to achieve more, and we're dedicated to this mission across every aspect of our company. Our culture is centered on embracing a growth mindset and encouraging teams and leaders to bring their best each day. Join us and help shape the future of the world.