About this role
Senior and/or Principal Software Engineer- AI GPU Performance
United States, Multiple Locations, Multiple Locations
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Job description
Company and benefits
Job number
200055726
Date posted
Oct 29, 2026
Work site
0 days / week in-office – remote
Travel
Less than 25%
Profession
Software Engineering
Discipline
Software Engineering
Role type
Individual Contributor
Employment type
Full-Time
Overview
The Microsoft AI Frameworks team develops the software and systems that enable state-of-the-art AI models to run efficiently at cloud scale. We work across kernels, frameworks, compilers, runtimes, libraries, and hardware platforms, including NVIDIA and AMD GPUs and Microsoft silicon.
We are seeking hands-on Senior and/or Principal Software Engineers to deliver state-of-the-art performance for an Large Language Model (LLM) serving stack. You will optimize GPU kernels and distributed inference systems to improve latency, throughput, and hardware efficiency for OpenAI, Microsoft AI, and other models served at Microsoft.
Successful candidates combine strong systems engineering, deep performance expertise, disciplined measurement, and effective cross-team collaboration.
As a Senior Software Engineer, you will own significant performance improvements across GPU kernels and inference runtime components, carrying optimizations from investigation through production.
As a Principal Software Engineer, you will tackle the most difficult cross-stack performance challenges and create reusable capabilities that advance serving performance across models and hardware generations.
At Microsoft, our mission to empower every person and every organization on the planet to achieve more guides how we partner with customers to deliver trusted, impactful solutions. With a growth mindset culture, we innovate responsibly and measure success by shared progress people, teams, and customers. Join us to do meaningful work that changes the world and helps shape what’s next for everyone.
Responsibilities
As a Senior Software Engineer:
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Develop and optimize GPU kernels and runtime components for state-of-the-art LLM serving performance.
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Profile workloads and improve latency, throughput, and hardware efficiency.
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Integrate robust, maintainable optimizations into production serving systems.
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Collaborate across model, compiler, infrastructure, and hardware teams.
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Use AI-assisted development tools effectively to accelerate the development process.
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Contribute to technical reviews, engineering standards, and mentoring.
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Embody Microsoft’s culture and values.
As a Principal Software Engineer:
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Drive cross-stack optimization across kernels, compilers, runtimes, and distributed serving.
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Perform difficult, low-level optimization and resolve critical performance bottlenecks.
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Turn performance innovations into reusable production capabilities.
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Collaborate across research, infrastructure, and hardware teams to deliver measurable improvements.
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Use AI-assisted development tools effectively to accelerate the development process.
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Mentor senior engineers and raise engineering standards.
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Embody Microsoft’s culture and values.
Qualifications
Required/Minimum Qualifications:
- Bachelor’s Degree in Computer Science or a related technical field and 4+ years of technical engineering experience coding in languages such as C++, or Python, or equivalent experience.
Other Requirements:
- Ability to meet Microsoft, customer and/or government security screening requi