Senior Software Engineer - M365 Copilot App
Microsoft Corporation
Mountain View, CA
Job posting number: #7318464 (Ref:ms-1893577)
Posted: October 14, 2025
Job Description
As a Senior Software Engineer on the team, you will be responsible for designing, building and running the Copilot application across Windows, Mac, and Web platforms. You will lead architectural decisions and contribute hands-on code to advance the state of the art and build best-in-class applications, balancing innovation with platform stability. You will work closely with other engineers to take ideas through design, implementation, validation, and release. You will write secure, reliable, scalable, and high-performance code as well as automation to test it and telemetry to measure its behavior in production. You will work in a fast paced, highly collaborative environment to design, prototype, implement, and ship features. You will partner across multiple product and platform teams in Microsoft and define reusable architectural patterns and best practices that enable consistent, intelligent, and high-performing user experiences at scale. You will mentor engineers and foster a culture of technical excellence through best practices in architecture, performance profiling, and cross-platform design systems. You will provide engineering leadership to others in the team in taking on the engineering and technical challenges inherent in building and delivering a consumer-grade application that powers cross-platform AI experiences.
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.