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September 19, 2025

Software Engineer II – Office on Windows Performance Focus

Mid • On-site

$100,600 - $199,000/yr

Redmond, WA

Overview


The Office Growth and Experiences team (OGX) is an experienced and highly passionate group at Microsoft that builds and maintains end-to-end ownership of Office across all platforms. Empowering developers with exceptional opportunities for ownership, autonomy, and professional growth as we tackle complex problems across Windows, Mac, iOS, and Android. OGX is responsible for a wide breadth of areas including UX, next-gen collaboration, business-critical fundamentals, and driving user engagement for millions of users across our multiple ecosystems.

 

Within OGX we are specifically looking for a Software Engineer II – Office on Windows Performance Focus with a focus on driving top-tier performance for Desktop Windows platform. You will collaborate with teams across Office, lead architectural discussions to improve performance, and mentor other engineers as we continue to elevate Office’s capabilities on Windows devices.

 


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.


Responsible:
Performance Ownership: Execute & drive efforts to improve performance of Office on Windows, including design, coding, and extensive instrumentation. Identify hotspots, architect solutions, and drive these improvements into production.


Collaboration: Collaborate across disciplines (e.g., PM, Design, Test) and geographies, ensuring we deliver end-to-end solutions efficiently.


Data-Driven Development: Rely on telemetry and analytics to identify top performance bottlenecks. Continuously measure success by gathering and interpreting performance metrics, using the data to inform ongoing improvements and future designs.


Quality & Stability: Contribute to designing robust test coverage for performance scenarios. Ensure that new and existing features maintain and improve user experience without regressions.


Customer Success: Respond quickly to customer feedback & escalations and be proactive in identifying customer pain points and address them.

Qualifications

Required Qualifications

  • Bachelor's Degree in Computer Science or related technical field AND 2+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
    • OR equivalent experience.
  • 3+ years of software design and coding experience in at least one variant of C (C, C++, C#, React Native), with recent emphasis on desktop or performance-critical development.
  • Experience in performance profiling, optimization techniques, concurrency models, debugging, and memory management.
  • Growth mindset & adaptability to learn quickly & efficiently a new area & technology stack on the job.

 

Other Requirements
Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include, but are not limited to the following specialized security screenings: Microsoft Cloud 

 

Background Check:
This position will be required to pass the Microsoft Cloud background check upon hire/transfer and every two years thereafter.

 

Preferred Qualifications:

  • Master's Degree in Computer Science or related technical field AND 3+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR Bachelor's Degree in Computer Science or related technical field AND 5+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python
  • OR equivalent experience.
  • Windows Platform: Experience using C++, C#, React Native or cross-platform frameworks, and comfortable with Window’s performance tools (WPA, Profilers, etc.).
    Large-Scale Software Development: Familiarity with shipping high-visibility, multi-million-user applications and working in large codebases.
  • Software Engineering IC3 - The typical base pay range for this role across the U.S. is USD $100,600 - $199,000 per year. There is a different range applicable to specific work locations, within the San Francisco Bay area and New York City metropolitan area, and the base pay range for this role in those locations is USD $131,400 - $215,400 per year.

    Certain roles may be eligible for benefits and other compensation. Find additional benefits and pay information here: https://careers.microsoft.com/us/en/us-corporate-pay

    • Microsoft will accept applications for the role until September 25, 2025.

Diverse Technical Background: Knowledge of areas like graphics engines, network protocols, compilers, sandboxing/security, or telemetry analytics is beneficial.

 

Responsibilities


Performance Ownership: Execute & drive efforts to improve performance of Office on Windows, including design, coding, and extensive instrumentation. Identify hotspots, architect solutions, and drive these improvements into production.


Collaboration: Collaborate across disciplines (e.g., PM, Design, Test) and geographies, ensuring we deliver end-to-end solutions efficiently.

 

Data-Driven Development: Rely on telemetry and analytics to identify top performance bottlenecks. Continuously measure success by gathering and interpreting performance metrics, using the data to inform ongoing improvements and future designs.


Quality & Stability: Contribute to designing robust test coverage for performance scenarios. Ensure that new and existing features maintain and improve user experience without regressions.


Customer Success: Respond quickly to customer feedback & escalations and be proactive in identifying customer pain points and address them.