Software Engineer, Kernels/CUDA (C++) is open at xAI in Palo Alto, CA; Seattle, WA. The posting gives a salary of $160K - $250K. Posted on Mar 6, 2026, and still on xAI’s careers page when we last checked, on Nov 14, 2026.
About the role
Design, build, and optimize massive GPU clusters for extreme-scale training and inference workloads Develop and tune low-level CUDA kernels (GeMM, Attention, etc.), using CUTLASS, Tensor Cores, and Nsight for maximum performance Profile, debug, and eliminate bottlenecks across GPU memory hierarchy, networking fabric, filesystems, and multi-GPU operation Collaborate closely with AI research teams to deliver…
The opening lines of the posting. The rest is on xAI’s careers page.
Hiring at xAI
xAI has 296 open roles right now, 20 of them remote. Most are in Engineering, Manufacturing & Trades and Operations. The median advertised salary across its roles with a published range is $205K. See all its roles
