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# System Software Engineer

- **Company:** NVIDIA Corporation
- **Location:** United States
- **Experience:** Expert
- **Salary:** $152,000.0 - $241,500.0
- **Contract:** Permanent contract
- **Skills:** C (Programming Language), Artificial Intelligence, Application Performance Management, Systems Engineering, C++ (Programming Language), Cloud Computing, Nvidia CUDA, Computer Programming, Network Congestion, Software Debugging, Ethernet, InfiniBand, Python (Programming Language), Network Troubleshooting, PCI Express, Remote Direct Memory Access, Ansible, Tensorflow, Software Engineering, Systems Architecture, Scripting, Graphics Processing Unit (GPU), Pytorch, Deep Learning, Parallel Computation, Kubernetes, Information Technology, Build Tools, Slurm, Docker
- **Published:** September 28, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-system-software-engineer-gpu-performance-ca--4c974e23-8c8e-4c0f-90fd-030acb84e9da

## About the Role

* M.S. (or equivalent experience) or PhD in Computer Science, or related field with relevant performance engineering and HPC experience
 * 3+ yrs of experience with parallel programming and at least one communication runtime (MPI, NCCL, UCX, NVSHMEM)
 * Experience conducting performance benchmarking and triage on large scale HPC clusters
 * Good understanding of computer system architecture, HW-SW interactions and operating systems principles (aka systems software fundamentals)
 * Implement micro-benchmarks in C/C++, read and modify the code base when required
 * Ability to debug performance issues across the entire HW/SW stack. Proficient in a scripting language, preferably Python
 * Familiar with containers, cloud provisioning and scheduling tools (Kubernetes, SLURM, Ansible, Docker)
 * 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 scale deployments
 * Familiarity with CUDA programming and/or GPUs
 * Experience with Deep Learning Frameworks such PyTorch, TensorFlow, Analysis Skills, Ansible, Artificial Intelligence (AI), Automotive Automation, Benchmarking, C Programming Language, C++ Programming Language, CUDA (Compute Unified Device Architecture), Cloud Computing, Communication Skills, Computer Architecture, Computer Science, Computer Systems, Debugging Skills, Deep Learning, Docker, GPU (Graphics Processing Unit), Hardware Architecture, MPI, Network Debugging, Operating Systems, Parallel Programming, Patient Assessment, Performance Analysis, Performance Engineering, Proof of Concept, Python Programming/Scripting Language, Scripting (Scripting Languages), Software Engineering, System Architecture, Systems Engineering, Trade-Off Analysis

## Description

We are the GPU Communications Libraries and Networking team at NVIDIA. 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 huge 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) within a node and with high-speed networking (eg. Infiniband, Ethernet) across the nodes. Communication performance between the GPUs has a direct impact on the end-to-end application performance; and the stakes are even higher at huge scales! This is an outstanding opportunity for someone with HPC and performance background to advance the state of the art in this space. Are you ready for to contribute to the development of innovative technologies and help realize NVIDIA's vision?
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 all HW (GPU, CPU, Networking) and SW components in the stack
 * Evaluate proof-of-concepts, conduct trade-off analysis when multiple solutions are available
 * Triage and root-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 very dynamic team across multiple time zones


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