New

Principal Systems SW Engineer

Microsoft
$139,900.00 - $274,800.00 / yr
United States, Washington, Redmond
Feb 24, 2026
Overview Do you want to be at the forefront of innovating the latest hardware designs to propel Microsoft's cloud growth? Are you seeking a unique career opportunity that combines technical capabilities, cross-team collaboration with business insight and strategy? ThisPrincipal SystemsSWEngineerrole with a focus on supporting hardware/software co-design and evaluation ofAIsystems architecture concepts to improve datacenter performance, efficiency, and reliability might be the right one for you. Ifyou'reinterested in hardware/software co-design and evaluating AI system architecture concepts to improve datacenter performance, efficiency, and reliability, thisPrincipal Systems SW Engineer role could be a strong fit. 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 achieve 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. In alignment with our Microsoft values, we are committed to cultivating an inclusive work environment for all employees to positivelyimpactour culture every day. Join the Strategic Planning and Architecture(SPARC) team within Microsoft's Azure Hardware Systems and Infrastructure (AHSI) organization, the team behind Microsoft's expanding Cloud Infrastructure and for powering Microsoft's "Intelligent Cloud" mission.Microsoft delivers more than 200 online services to more than one billion individuals worldwide, and AHSI is the team behind our expanding cloud infrastructure. We deliver the core infrastructure and foundational technologies for Microsoft's cloud businesses including Microsoft Azure, Bing, MSN, Office 365, OneDrive, Skype,Teamsand Xbox Live. As part of the Systems Planning and Architecture (SPARC) group, you will help with pathfinding and architecture for futureAIsystemsand related technologies that create advantages for Azure and Microsoft. You will collaborate across the Azure organization to evaluate next-generation datacenter technologies and influence Azure product roadmaps for both Microsoft and 3rdparty silicon and systems. Responsibilities RESPONSIBILITIES: Leadership: Spearhead system architecture exploration and definition for Microsoft's custom AI systems. Identify system level co-design opportunities working across GPU, host, network, storage and memory vectors Conduct comprehensive architecture analysis for next-generationML modelarchitecture,with a deep understanding ofAzure AIusecases.Run simulations to evaluatesolutionsandbuild end-to-endhardware and softwareprototypes. Prototype: Collaborate with cross-functional teams to develop full stack technology across hardware and software, to mature concepts from PoC to productization. Success in this role requires: Hands-onengineer who understandsSystem Software stackand its interfaces with ML frameworks,ML model architecture and its mapping to AI systems. Identifyingpromisingfeatures and technologies to address these problems, prototype solutions, deriskproductization via buildingPoCs. Working acrosshardware,software boundariesto develop end-to-end solutions. Working across organization boundariesto land promising features and technologies in Microsoft's AI systems. Qualifications QUALIFICATIONS: 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 Other Requirements Abilityto meet Microsoft,customerand/or government security screening requirementsarerequiredfor this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will berequiredto pass the Microsoft Cloud Background Check upon hire/transfer and every two years thereafter. Preferred: 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. Deep expertise in AI scale-up and scale-out networking/interconnect architectures, along with a good understanding of memory/storage technologies. Deep understanding of AI inference systems and associated software, and emerging approaches to orchestrate tiered memory and storage capabilities for distributed serving and KV caching for agentic systems. Understanding of GPU compute and systems in the cloud, including CPU, memory, networking and storage technologies. Understanding of the system software, storage and communication library integration into AI frameworks. Intellectual curiosity and passion about learning and deployingnew technologies.Problem-solvingskills, analytical capabilities, and attention to details. Ability to manage through ambiguity,bringingclarity and results orientation to engage and energize collaborators and stakeholders Experience leading and driving complex projectswith respect and integrity, including thosewith multiple workstreams spanning different business and technical disciplines. Skilled in partnering and influencing architects, hardware engineers, and software leads. Collaboration skills,teamwork,and senseof presumed responsibility Verbal and written communication skills, and ability to articulateandengage with both technical and non-technical stakeholders at all levels. At Microsoft, our mission is to empower every person and organization on the planet to achieve more. We foster a culture of inclusion, growth, and innovation, built on values of respect, integrity, and accountability. If you're passionate about driving meaningful impact, solving complex problems, and contributing to a growing organization, we would love to hear from you. Software Engineering IC5 - The typical base pay range for this role across the U.S. is USD $139,900 - $274,800 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 $188,000 - $304,200 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 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.