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Principal Software Engineer - M365 Copilot App

Microsoft

$139,900 - $304,200
Oct 6, 2025
Mountain View, CA, US
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Microsoft is looking to solve the problem of transforming productivity in profound ways through the M365 Copilot App, which is one of the fastest growing products at Microsoft.

Requirements

  • 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, or Python
  • 3+ years experience developing, deploying, and maintaining one or more large scale cloud services
  • 3+ years experience architecting, implementing, and debugging backend and middle-tier service code
  • Experience with strategic planning and execution
  • Experience delivering customer experiences, product quality, craftsmanship
  • Coding experience in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, or Python
  • Experience with cloud services and scalability

Responsibilities

  • Designing, building and running the Copilot app and backend service
  • Leading architectural decisions and contributing hands-on code to advance the state of the art and build a best-in-class service
  • Writing secure, reliable, scalable, and high-performance code as well as automation to test it and telemetry to measure its behavior in production
  • Partnering across multiple product and platform teams in Microsoft to define reusable architectural patterns and best practices
  • Mentoring engineers and promoting a culture of high technical standards through best practices in architecture, performance profiling, and cross-platform design systems
  • Providing engineering leadership to others on the team as they take on the engineering and technical responsibilities involved in building and delivering a global scale service
  • Proactively seeking new knowledge and adapting to new trends, technical solutions, and patterns that will improve the availability, reliability, efficiency, observability, and performance of the product

Other

  • Bachelor's Degree in Computer Science or related technical field
  • Ability to meet Microsoft, customer and/or government security screening requirements
  • Ability to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter
  • Embodying Microsoft's culture and values
  • Collaborating to realize shared goals and creating a culture of inclusion