Principal Software Engineer

Microsoft Corporation

Redmond, WA

Job posting number: #7317693 (Ref:ms-1889178)

Posted: October 7, 2025

Job Description

We are the team that defines how users interact with Copilot in Microsoft 365. Our charter is to build foundational UX systems that make Copilot feel intelligent, responsive, and deeply integrated into the flow of work. We own the core interaction surfaces and frameworks that power Copilot’s presence across endpoints -- Teams, Outlook, M365.com, and Office apps. This includes the Shell, Navigation, Input, Sessions, Feedback and Settings, as well as proactive and assistive UX patterns.


We operate as a vertical and horizontal team, partnering across product, design, and engineering to deliver consistent, high-quality experiences at scale. Our work is grounded in telemetry, user research, and a relentless focus on performance, accessibility, and craft.
We’re looking for a full-stack Principal Software Engineer to help shape the future of AI-powered productivity experiences in Microsoft 365. You’ll join a team building intuitive, performant, and accessible user interfaces that connect millions of users with the power of Copilot.

 

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.  





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More Info

Job posting number:#7317693 (Ref:ms-1889178)
Application Deadline:Open Until Filled
Employer Location:Microsoft Corporation
Redmond,Washington
United States
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