Microsoft · 10 hours ago
Senior Software Engineer - M365 Copilot App
Redmond, WA
Full-time
Onsite
Mid, Senior Level
$120K/yr - $235K/yr
4+ years expMicrosoft is seeking a Senior Software Engineer for the M365 Copilot App team in Redmond, WA, to craft high-performing, scalable frontend experiences that enhance AI productivity. The role involves building innovative features, designing performance telemetry, and collaborating with various teams to evolve frontend architectures that support AI-driven user interfaces.
Agentic AIApplication Performance ManagementArtificial Intelligence (AI)Business DevelopmentDevOpsInformation ServicesInformation TechnologyManagement Information SystemsNetwork SecuritySoftware
Responsibilities
You will design and implement scalable, high-performance frontend systems using React, TypeScript, microfrontends, and modern rendering stacks to power AI productivity experiences across the M365 Copilot App—while ensuring performance telemetry is built into the experience
You will partner across Microsoft, including teams like Create, Copilot Notebooks, and Copilot, to evolve a shared frontend platform and define reusable, portable architectural patterns and best practices that enable consistent, intelligent, and data-driven performance at scale
You will lead architectural decisions and contribute hands-on code to advance the state of the art in frontend engineering, balancing innovation with platform stability and applying insights from live site performance data to guide trade-offs
You will apply a data-driven approach to performance, leveraging real-world telemetry, experimentation, and diagnostics to continuously optimize responsiveness, accessibility, and reliability—using metrics like UPLT and live site dashboards to validate improvements
You will mentor engineers and foster a culture of technical excellence through best practices in frontend architecture, performance profiling, telemetry integration, and cross-platform design systems
Qualification
Required
Bachelor's Degree in Computer Science or related technical field AND 4+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python + OR equivalent experience
4+ years of experience in frontend architecture, performance engineering, or scalable web application development
Preferred
Customer‑obsessed and passionate about product impact, with a focus on using data insights to inform decisions and improve user experience
Experience applying a data-driven approach to engineering, including performance telemetry, experimentation frameworks, and analytics pipelines; familiarity with Azure Data Factory or similar ETL technologies for integrating and transforming performance data at scale
Ownership of a complex frontend system or framework, such as a microfrontend orchestration layer or a high-scale web experience with strict performance SLAs—delivered in production and adopted across multiple teams or products, with measurable performance outcomes
Ability to elevate engineering culture and practices through initiatives that led to measurable improvements in performance, platform adoption, or developer productivity across teams or organizations
Company
Microsoft
Microsoft is a software corporation that develops, manufactures, licenses, supports, and sells a range of software products and services.
10001+ employees
H1B Sponsorship
Microsoft has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
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Trends of Total Sponsorships
2025 (9192)
2024 (9343)
2023 (7677)
2022 (11403)
2021 (7210)
2020 (7852)
Funding
Current Stage
Public CompanyTotal Funding
$1MKey Investors
Technology Venture Investors
2022-12-09Post Ipo Equity
1986-03-13IPO
1981-09-01Series Unknown· $1M
Leadership Team
Satya Nadella
Chairman and CEO
Vukani Mngxati
Chief Executive Officer - Microsft South Africa
Recent News
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2026-01-16
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