OverviewThe Windows + Devices Fundamentals team is responsible for the reliability, compatibility, performance, battery life, and sustainability of Windows devices. Our work spans hardware and OEM partners, the operating system, and application layers – helping protect, manage, and enhance the fundamentals of the Windows ecosystem.We are seeking a self-driven Senior Software Engineer to shape the next generation of Windows device optimizations. As advances in AI, silicon, and software create new opportunities, you will help make exceptional device fundamentals a defining feature of Windows PCs.This role is ideal for an engineer who enjoys solving complex systems problems, pursuing technical excellence, and delivering innovations that improve how people live, work, and play.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.ResponsibilitiesAnalyze telemetry and trace data to characterize software and hardware behavior on individual devices and at scale.Diagnose complex system issues using low-level debugging and performance-analysis tools.Identify optimization opportunities and lead the design and architecture of improvements.Implement changes across hardware, operating-system, and application layers.Deliver robust, high-quality solutions while balancing performance, reliability, maintainability, and architectural consistency.Use data to prioritize engineering investments and make decisions in ambiguous problem spaces.Collaborate with internal teams, OEMs, and hardware partners to deliver improvements across the Windows ecosystem.TechnologiesThe team works with technologies including:C, C++, C#, Python, scripting and automation toolsWinDbg, Windows Performance Analyzer, and ETW tracingCosmos, Kusto, Asimov, and Azure-based trace-processing systemsPower BI, statistics, and large-scale telemetry analysisMachine learning and AI modelsQualificationsRequired Qualifications:Bachelor's degree in Computer Science or a related technical discipline and 7+ years of software engineering experience using languages such as C, C++, C#, Java, JavaScript, or PythonOR equivalent practical experience.Experience with operating-system architecture or system-level development.Knowledge of Windows internals, performance analysis, or power optimization.Experience working across hardware, firmware, operating-system, and application boundaries.Familiarity with large-scale telemetry, statistical analysis, or Azure data platforms.Experience influencing architecture and technical direction across multiple teams.2+ years of systems-analysis experience, with an emphasis on low-level debugging.Experience diagnosing and optimizing system performance.Demonstrated success developing and delivering highly reliable systems.Solid software design, programming, and problem-solving skills.Ability to navigate ambiguity and prioritize engineering investments using data.#WDJOBS #WSSIJOBS This position will be open for a minimum of 5 days, with applications accepted on an ongoing basis until the position is filled.Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, citizenship, color, family or medical care leave, gender identity or expression, genetic information, immigration status, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran or military status, race, ethnicity, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable local laws, regulations and ordinances. If you need assistance with religious accommodations and/or a reasonable accommodation due to a disability during the application process, read more about requesting accommodations.