New 
Principal Software Engineer - Front End
 Microsoft | |
 United States, Washington, Redmond | |
 Oct 05, 2025 | |
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OverviewThe Copilot Studio Agent Platform & Experiences team is looking for a Principal Software Engineer, Front End to help build the user-facing layer of Microsoft's next-generation AI tooling. We own the core UX that enables makers, developers, and enterprise users to create and manage intelligent agents that work across Microsoft 365 - from Copilot and Teams to the web and beyond. In this role, you'll focus on crafting intuitive, responsive, and scalable sdk components, interfaces using React and TypeScript, working closely with product managers, designers, and researchers. You'll help shape architecture and standards, lead feature development from concept to deployment, and play a key role in setting the technical direction for a growing product surface. We're a tight-knit team that cares deeply about design quality, engineering excellence, and real-world customer impact. You'll find a balance of autonomy and support, with opportunities to work on highly visible features that reach millions of users. If you enjoy working at the intersection of design, product, and deep engineering craft - and want to help shape how people build and interact with AI - we'd love to talk to you.
ResponsibilitiesLead the design and implementation of modern, accessible frontend solutions using React and TypeScript.Own architecture discussions, establish frontend patterns, and contribute to system design across web surfaces.Drive telemetry integration to track performance, usage, and reliability; use this data to refine the product.Mentor other engineers and act as a Designated Responsible Individual (DRI) for systems in production.Partner closely with PM, Design, and partner engineering teams to ship cohesive, customer-focused experiences.Write clean, extensible, and testable code that scales, while contributing to shared tools and internal frameworks.Promote engineering standards-code quality, testing, accessibility, security, and performance.Drive experimentation and data-driven decision-making in collaboration with product teams. | |