Microsoft

Principal Software Engineer - M365

Microsoft
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4 days ago
Suzhou, China +2 moreStaff+

Responsibilities

  • Set technical direction and architecture for performance, scalability, reliability, and strategic efficiency across Microsoft 365 and Copilot.
  • Own complex, ambiguous engineering problems end to end from investigation and architecture through implementation, production rollout, measurement, and sustained operation.
  • Lead cross-organizational engineering initiatives and architectural decisions across multiple services and organizations.
  • Build reusable platforms, frameworks, APIs, automation, tools, and engineering patterns that create technical leverage.
  • Use telemetry, profiling, benchmarking, experimentation, evaluation frameworks, and production signals to identify root causes and guide technical tradeoffs.
  • Design and implement solutions for latency reduction, infrastructure demand, telemetry efficiency, resource utilization, reliability, cost efficiency, and scalable service operation.
  • Build and apply agents, automation, AIOps, and AI-driven engineering systems for investigation, evaluation, remediation, and operational scalability.
  • Raise engineering standards through architecture and code reviews, technical communication, mentoring, and development of senior engineers and technical leaders.

Requirements

  • Bachelor's degree in computer science or a related technical field and 6+ years of technical engineering experience with coding, or equivalent experience.
  • Experience building commercial-grade software, including substantial experience with mission-critical, large-scale, high-availability services.
  • Experience setting technical direction and architecture for large-scale distributed systems and driving decisions across services, platforms, or engineering organizations.
  • Deep expertise in performance, scalability, reliability, and efficiency engineering for large-scale cloud or distributed systems.
  • Experience creating reusable platforms, frameworks, APIs, automation, tools, or architectural patterns while balancing technical and customer tradeoffs.
  • Demonstrated technical leadership, cross-organizational influence, clear communication of complex decisions, and mentoring of senior engineers and technical leaders.
  • Experience with LLM platforms, model-serving systems, AI infrastructure, or other large-scale AI-powered systems, including performance, capacity, reliability, or cost optimization.
  • AI engineering fluency with agents, automation, AIOps, evaluation systems, or AI-driven analysis.
  • Ability to pass the Microsoft Cloud background check upon hire or transfer and every two years thereafter.
  • Preferred qualifications include a master's degree with 8+ years of experience, or a bachelor's degree with 12+ years of experience, or equivalent experience.

Categories

Microsoft

About Microsoft

10,000+ employees

Microsoft develops operating systems, productivity software, cloud services, developer tools, and consumer devices for individuals, enterprises, and governments. Its main products include Windows, Microsoft 365, Azure, Visual Studio/GitHub, Xbox, and LinkedIn; revenue comes from software subscriptions and licenses, cloud consumption, hardware sales, and advertising. Founded in 1975 and headquartered in Redmond, Washington, Microsoft is a public company traded on Nasdaq.

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