[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Microsoft jobs](https://jobs.opennash.com/companies/microsoft/) · [Search jobs](/search/) Microsoft # Principal Software Engineer - HW/SW in Fleet Infrastructure United States, Washington, Redmond Senior individual contributor Software Engineering Listed on Microsoft’s official careers site. Posted October 14, 2026. Check that it is still open and apply there. [Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556944401) [OpenNash Jobs](https://jobs.opennash.com/) / [Microsoft](https://jobs.opennash.com/companies/microsoft/) / Principal Software Engineer - HW/SW in Fleet Infrastructure ## Job description Partner with broad teams to design, develop, validate, debug, and optimize infrastructure software across OS, firmware, fleet health, hardware repair, telemetry, and monitoring areas. Lead hardware and firmware reliability architecture, including health telemetry, diagnostics, failure detection, predictive insights, and remediation automation. Drive failure analysis and root cause investigation for critical live-site incidents involving hardware, firmware, OS, storage, networking, or infrastructure platforms, and drive durable improvements that reduce recurrence. Establish engineering standards, observability patterns, and operational mechanisms that improve fleet availability, reduce deployment risk, and strengthen hyperscale infrastructure operations. Evolve M365 substrate infrastructure strategy for AI and agentic workloads across compute, memory, storage, and networking domains. Influence cross-organizational technical direction, communicate complex tradeoffs clearly, and help teams make durable architecture decisions. Mentor early in career engineers. 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 These requirements include but are not limited to the following specialized security screenings: Master's Degree in Computer Science or related technical field AND 8+ 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 12+ years technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, or Python OR equivalent experience. Experience leading architecture and technical strategy for large-scale distributed systems, cloud infrastructure, or hyperscale service platforms. Deep experience with hardware platforms, firmware, OS, drivers, datacenter infrastructure software, storage systems, networking, or platform software. Experience with New Product Introduction, platform validation, deployment readiness, lifecycle management, or fleet-scale hardware operations. Experience on hyperscale fleet live site, using telemetry, observability, failure analysis, predictive diagnostics, or automation to improve infrastructure reliability. Experience working with silicon providers, hardware vendors, OEMs, ODMs, firmware teams, or platform engineering organizations. Experience influencing cross-organizational engineering strategy and driving complex technical programs across multiple teams. Communication skills with the ability to explain technical tradeoffs to senior engineering and business leaders. ## At a glance - Posted by the employer: Oct 14, 2026 - First seen by OpenNash: Aug 21, 2026 - Last checked: Oct 18, 2026 - Listed for: 58 days - Location: United States, Washington, Redmond[Apply on Microsoft’s careers site →](https://apply.careers.microsoft.com/careers/job/1970393556944401) ## More jobs at Microsoft ### [Member of Technical Staff, Microsoft Robotics](https://jobs.opennash.com/companies/microsoft/jobs/116074aea50f3d2ae2ec/) United States, Washington, Redmond ### [Member of Technical Staff, Microsoft Robotics (Software Systems)](https://jobs.opennash.com/companies/microsoft/jobs/844ba3de52d8ce588d33/) United States, Washington, Redmond ### [Multiple Positions (Senior & Principal) - Windows in the Cloud](https://jobs.opennash.com/companies/microsoft/jobs/e304f2ab9e110fb71021/) United States, Washington, Redmond ### [Principal Program Manager, Partner Developer Relations - Minecraft](https://jobs.opennash.com/companies/microsoft/jobs/eac1bae51a99fda335c8/) United States, Washington, Redmond ### [Principal Quantum Applications Architect - Cryptography](https://jobs.opennash.com/companies/microsoft/jobs/ef79a97e841a1e899a9b/) United States, Washington, Redmond ## Similar jobs at other companies ### [Principal Software Engineer – Mobile Software Architecture](https://jobs.opennash.com/companies/qualcomm/jobs/914589d5d4db917886f4/) Qualcomm · San Diego, California, United States of America ### [Principal Software Engineer](https://jobs.opennash.com/companies/jpmorganchase/jobs/43ddee4b84a577509be8/) JPMorganChase · Seattle, WA, United States ### [Principal Software Engineer](https://jobs.opennash.com/companies/citigroup/jobs/57f0d1514e469a39bd0b/) Citigroup · Jacksonville Florida United States ### [Principal Software Engineer](https://jobs.opennash.com/companies/aramark/jobs/ab582b5e1a57f5b633f8/) Aramark · Philadelphia, PA, US ### [Principal Software Engineer, At-Scale Reliability and Fleet Intelligence — CSP Engagements](https://jobs.opennash.com/companies/nvidia/jobs/667608f8878e8dd93d6d/) NVIDIA · US, CA, Santa Clara [Software Engineering jobs](/functions/software-engineering/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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