Principal Applied Scientist

Overview Overview Microsoft Cloud Operations and Innovation (CO+I) underpins Microsoft’s global cloud infrastructure, driving the innovation, planning, design, construction, and operation of one of the largest data center fleets in the world. We are seeking an exceptional Principal Applied Scientist to join the Data Center Applied AI team. In this role, you will play a pivotal role in advancing and integrating cutting‑edge, multimodal agentic AI systems into core tools and operational workflows that power Microsoft’s data centers. Your work will drive operational efficiency at scale and help advance Microsoft’s mission to empower every person and every organization on the planet to achieve more through intelligent, multimodal AI agents.

As a Senior Applied Scientist, you will bridge state‑of‑the‑art AI research with production‑grade engineering, delivering agent architectures that are reliable, secure, scalable, observable, and measurable. You will collaborate closely with Business and Engineering to build and deploy agentic capabilities across workflow automation, information retrieval, retrieval‑augmented generation (RAG), tool and function calling, long‑horizon task execution, and multi‑agent orchestration.