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Principal Group Engineering Manager - M365 Copilot App

Microsoft

$163,000 - $331,200
Oct 25, 2025
Mountain View, CA, US
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AI is transforming productivity in profound ways. As the new home of Office productivity, the M365 Copilot App (M3CA) is at the forefront of this transformation. It is one of the fastest growing products at Microsoft, and the primary means through which most M365 users experience the power of Copilot – be it Chat, Search, or Agents. M3CA is a multi-platform product, built for consumer-grade experiences and enterprise-grade trust. Our team is responsible for all aspects of engineering for this ecosystem of applications and services.

Requirements

  • coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift, or Python
  • developing, shipping, and maintaining one or more large scale Windows, Mac, or Web applications.
  • making technical decisions, planning and executing projects, and delivering results.
  • coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift or Python
  • technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift, or Python
  • technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift or Python

Responsibilities

  • Guide engineering managers in architectural decisions and support your team in making effective technical choices that balance innovation and platform stability.
  • Work closely with your Engineering Managers and Product counterparts to take ideas through design, implementation, validation, and release.
  • Partner across multiple product and platform teams in Microsoft and define reusable architectural patterns and techniques that enable consistent and intelligent user experiences at scale.
  • Mentor engineers and foster a culture of technical knowledge in architecture, performance profiling, and cross-platform design systems.
  • Provide engineering leadership to the team in taking on the technical complexities inherent in building and delivering a consumer-grade application that powers cross-platform AI experiences.
  • Optimizes, debugs, refactors, and reuses code to improve performance and maintainability, effectiveness, and return on investment.
  • Leads the resolution of complex site incidents and directs the work of other engineers across product lines.

Other

  • Role type: People Manager
  • Work site: 3 days / week in-office
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check
  • Embody our culture and values.