Senior Software Engineer

11/22/2025

The Senior Software Engineer will help feature teams deliver high-quality, performant experiences and track key performance metrics. They will collaborate with teams to drive the adoption of performance best practices and shape the vision for future architecture.

Working Hours

40 hours/week

Company Size

10,001+ employees

Language

English

Visa Sponsorship

About The Company

Every company has a mission. What's ours? To empower every person and every organization to achieve more. We believe technology can and should be a force for good and that meaningful innovation contributes to a brighter world in the future and today. Our culture doesn’t just encourage curiosity; it embraces it. Each day we make progress together by showing up as our authentic selves. We show up with a learn-it-all mentality. We show up cheering on others, knowing their success doesn't diminish our own. We show up every day open to learning our own biases, changing our behavior, and inviting in differences. Because impact matters. Microsoft operates in 190 countries and is made up of approximately 228,000 passionate employees worldwide.

About the Role

We help feature teams ship quality performant experiences out of the gate, track key performance metrics for critical high-volume scenarios, drive culture of performance by promoting best practices and consulting. As a team, we obsess about learning, diving deep into areas of opportunities, experimenting and use an evidence-based approach to turning opportunities into positive impact on performance of the product through collaboration. 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. - 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 industry programming, software development, and/or software engineering experience. - Great understanding of React internals, including rendering, performance and state management. - Proficiency in React, React ecosystem and best practices, significant web app development and debugging experience. - Solid understanding of web tech - JavaScript/TypeScript, HTML5, CSS3. - Prior experience in solving performance problems in complex web apps. - Bachelor's Degree in Computer Science or related technical field AND 6+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python - OR equivalent experience. - Good understanding of browser internals, rendering lifecycle, and critical rendering path. - Proficiency with React Profiler/React Render Tracker. - Solid experience with Edge DevTools and debugging techniques. - Experience solving challenging problems and cross team/organization collaboration skills. - Curiosity to dive deep, continuously learn and experiment. - Identify opportunities for improvements through profiling, developing proofs of concepts, measuring impact to performance improvements across critical areas of our application - Partner and collaborate with feature teams to help them to deliver high quality performant experiences - Drive adoption of performance best practices, through consulting and presenting deep dives - Track key performance metrics and their instrumentation, at build time as well as from production telemetry, investigate regressions - Help shape vision for future performant architecture and patterns as the application evolves

Key Skills

Software EngineeringReactJavaScriptTypeScriptHTML5CSS3Performance OptimizationDebuggingCollaborationProblem SolvingCuriosityPerformance MetricsWeb DevelopmentCC++C#