Principal Software Engineer - System Optimization
 Microsoft | |
$139,900.00 - $274,800.00 / yr
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 United States, California, Mountain View | |
 Apr 02, 2026 | |
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Overview
The Artificial Intelligence Frameworks team at Microsoft builds the software foundation that enables AI to run everywhere. Weoperateat the intersection of AI algorithmic innovation,purposebuilthardware, largescale systems, and production software, working closely with internal hardware teams and external partners. Our team is composed of highly capable, deeply motivated engineers who value technical excellence, collaboration, and an inclusive culture. We own inference performance for OpenAI and otherstateoftheartlarge language models, working directly with OpenAI on models deployed through Azure OpenAI Service. These systems power some of the largest AI workloads on the planet-serving trillions of inferences per day across Microsoft products. As a Principal Software Engineer - System Optimization you will provide technical leadership across the AI inference software stack, with a strong focus on highperformance, largescale serving systems. You will lead the benchmarking and optimization of cuttingedge LLMs across GPUs and Microsoft's custom AI hardware, architect improvements to distributed serving pipelines, and drive deep performance investigations across complex, multilayered systems. You will own critical performance and efficiency metrics, design and implement durable optimizations, and influence technical direction across teams. In close partnership with research, hardware, and production engineering groups, you will help deliver nextgeneration AI capabilities into Microsoft's most widely used products-directly shaping Azure's efficiency and the future of Microsoft's AI infrastructure. Microsoft's mission is to empower every person and every organization on the planet to achieve more. We bring a growth mindset to our work, innovate to empower others, and collaborate to realize shared goals. Guided by our values of respect, integrity, and accountability, we strive to create an inclusive environment where everyone can do their best work and thrive. Microsoft's mission is to empower every person and every organization on the planet to achieve more. Asemployeeswe 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. Responsibilities As a Principal Software Engineer on the team the common tasks of the job would include, but not be limited to:
Qualifications Required Qualifications:
Other Qualifications:
Preferred Qualifications:
#aifx, #aifxperformance #aifxoptimizations #AIInfra 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: 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. | |