Senior Software Engineer - Performance

Microsoft
United States, California, Mountain View2026-04-09onsite

About the job

As a Senior Software Engineer - Performance on the team, you will have the opportunity to work on multiple levels of the AI software stack, including the fundamental abstractions, programming models, compilers, runtimes, libraries and APIs to enable large scale training and inferencing of models. You will benchmark OpenAI and other LLM models for performance on GPUs and Microsoft HW, debug and optimize performance, monitor performance and enable these models to be deployed in the shortest amount of time and the least amount of HW possible helping achieve Microsoft Azure's capex goals.

Responsibilities

Identify and drive improvements to end-to-end inference performance of OpenAI and other state-of-the-art LLMs

Measure, benchmark performance on Nvidia/AMD GPUs and first party Microsoft silicon

Optimize and monitor performance of LLMs and build SW tooling to enable insights into performance opportunities ranging from the model level to the systems and silicon level to improve customer experience and reduce the footprint of the computing fleet

Enable fast time to market of LLMs/models and their deployments at scale by building SW tools that afford velocity in porting models on new Nvidia and AMD GPUs

Design, implement, and test functions or components for our AI/DNN/LLM frameworks and tools

Speeding up/reducing complexity of key components/pipelines to improve performance and/or efficiency of our systems

Communicate and collaborate with our partners both internal and external

Embody Microsoft's Culture and Values

Qualifications

Minimum

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.

Ability to meet Microsoft, customer and/or government security screening requirements are required for this role. These requirements include but are not limited to the following specialized security screenings: Microsoft Cloud Background Check: This position will be required to 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.

Technical background and solid foundation in software engineering principles, computer architecture, GPU architecture, HW neural net acceleration

Experience in end-to-end performance analysis and optimization of state of the art LLMs, including proficiency using GPU profiling tools

Experience in DNN/LLM inference and experience in one or more DL frameworks such as PyTorch, Tensorflow, or ONNX Runtime and familiarity with CUDA, ROCm, Triton

Cross-team collaboration skills and the desire to collaborate in a team of researchers and developers