Principal Software Engineer, Foundry Agents - CoreAI

Microsoft Foundry is building the foundational platforms that power the next generation of intelligent agents and generative AI systems. Within CoreAI, the Foundry Agents organization is responsible for key ownership areas across the end‑to‑end agent lifecycle: (a) Foundry Agents platform to deploy and run agents securely at enterprise scale with seamless integration with governed tools, (b) model fine‑tuning to train and improve agentic performance, and (c) Foundry observability to generate insights from agentic traces and continuously evaluate and optimize agents. As a senior engineer within Foundry Agents, you will help build and evolve large‑scale, cloud‑native systems that span the full lifecycle of advanced agentic applications — from secure enterprise deployment and governed tool integration, to fine‑tuning and training loops, to deep observability, evaluation, and optimization in production. Your work will directly shape how developers and enterprises build reliable, autonomous, and high‑impact AI agents. You will operate at the intersection of distributed systems, AI infrastructure, and developer platforms, owning architectural decisions for complex systems that must meet the highest standards of performance, reliability, security, and compliance. This role requires deep technical judgment, strong systems thinking, and the ability to translate evolving customer, developer, and research needs into durable platform capabilities.