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Principal Software Engineering Manager - M365 Copilot App

Microsoft

$139,900 - $304,200
Oct 23, 2025
Mountain View, CA, US
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Microsoft's M365 Copilot App (M3CA) is at the forefront of transforming productivity through AI, aiming to provide a consumer-grade yet enterprise-grade trusted experience for M365 users across multiple platforms.

Requirements

  • 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift, or Python
  • 4+ years experience developing, shipping, and maintaining one or more large scale Windows, Mac, or Web applications.
  • 3+ years experience planning, leading, and executing projects, as well as delivering impactful results.
  • 8+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift, or Python
  • 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C-Sharp, Java, JavaScript, Swift, or Python

Responsibilities

  • Lead architectural decisions and help your team make sound technical choices to build applications, balancing innovation with platform stability.
  • 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 capabilities in architecture, performance profiling, and cross-platform design systems.
  • Guides teams and leads identification of dependencies and the development of design documents for a product, application, service, or platform.
  • Optimizes, debugs, refactors, and reuses code to improve performance and maintainability, effectiveness, and return on investment.
  • Guides team and monitors other engineers across product lines, working on-call to monitor system/product/service for degradation, downtime, or interruptions.
  • Oversees product development and ensures products are scaled according to customer requirements, implementing appropriate techniques to address scaling and performance objectives.

Other

  • Lead a team to develop and improve the Copilot application across Windows, Mac, and Web platforms.
  • Work through Engineering Managers to lead architectural decisions.
  • Work closely with your Engineering Managers and Product counterparts to take ideas through design, implementation, validation, and release.
  • Plan investments for your organization, assign work to teams, and help them manage execution of projects.
  • Attract and hire top engineering talent.
  • Ability to meet Microsoft, customer and/or government security screening requirements are required for this role.
  • Microsoft Cloud Background Check