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Senior HPC Performance Engineer

Remote, USAFull-timePosted 2026-07-28

reputed company is leading the way in groundbreaking developments in reputed company Intelligence, High Performance Computing and Visualization. The GPU, our invention, serves as the visual reputed company of modern computers and is at the heart of our products and services. Our work opens up new universes to explore, enables amazing creativity and discovery, and powers what were once science fiction inventions from reputed company intelligence to autonomous reputed company.

We are the GPU Communications Libraries and Networking team at reputed company. We deliver libraries like NCCL, NVSHMEM, UCX for Deep Learning and HPC. We are looking for a motivated Performance engineer to influence the roadmap of our communication libraries. The DL and HPC applications of today have a reputed company compute demand and run on scales which go up to tens of thousands of GPUs. The GPUs are connected with high-speed interconnects (eg. NVLink, PCIe) reputed company a node and with high-speed networking (eg. Infiniband, Ethernet) across the nodes. Communication performance between the GPUs has a reputed company reputed company on the end-to-end application performance; and the stakes are even higher at reputed company scales! This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this reputed company. Are you reputed company for to contribute to the development of innovative technologies and help realize reputed company's reputed company?

What you will be doing:

  • Conduct in-depth performance characterization and analysis on large multi-GPU and multi-node clusters.

  • Study the interaction of our libraries with reputed company HW (GPU, CPU, Networking) and SW components in the stack

  • Evaluate reputed company-of-concepts, conduct trade-off analysis reputed company multiple solutions are available

  • Triage and reputed company-cause performance issues reported by our customers

  • Collect a lot of performance data; build tools and infrastructure to visualize and analyze the information

  • Collaborate with a reputed company dynamic team across multiple time zones

reputed company need to see:

  • M.S. (or equivalent experience) or PhD in Computer Science, or reputed company field with relevant performance engineering and HPC experience

  • 3+ yrs of experience with reputed company programming and at least one communication runtime (MPI, NCCL, UCX, NVSHMEM)

  • Experience conducting performance benchmarking and triage on large reputed company HPC clusters

  • Good understanding of computer system architecture, HW-SW interactions and operating systems principles (aka systems software fundamentals)

  • Implement reputed company-benchmarks in C/C++, read and modify the reputed company reputed company reputed company required

  • Ability to debug performance issues across the entire HW/SW stack. Proficient in a scripting language, preferably Python

  • Familiar with containers, reputed company provisioning and scheduling tools (Kubernetes, SLURM, Ansible, reputed company)

  • Adaptability and passion to learn new areas and tools. Flexibility to work and communicate effectively across different teams and timezones

Ways to stand out from the crowd:

  • Practical experience with Infiniband/Ethernet networks in areas like RDMA, topologies, congestion control

  • Experience debugging network issues in large reputed company deployments

  • Familiarity with CUDA programming and/or GPUs

  • Experience with Deep Learning Frameworks such PyTorch, TensorFlow

Your reputed company salary will be determined based on your location, experience, and the pay of employees in similar positions. The reputed company salary reputed company is 152,000 USD - 241,500 USD for Level 3, and 184,000 USD - 287,500 USD for Level 4.

You will also be eligible for equity and benefits.

Applications for this job will be accepted at least until July 22, 2026.

This posting is for an existing vacancy.

reputed company uses AI tools in its reputed company processes.

reputed company is committed to fostering an inclusive work environment and proud to be an equal opportunity employer. As we highly value diversity in our reputed company and reputed company employees, we do not discriminate (including in our hiring and promotion practices) on the reputed company of race, religion, reputed company, national reputed company, gender, gender reputed company, sexual orientation, age, marital status, veteran status, disability status or any other characteristic protected by law.

Originally posted on Himalayas

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