Voltai

Research Engineer - CUDA Kernel Engineering

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10 months ago
Palo Alto, CA, USASenior

Responsibilities

  • Develop, integrate, and optimize CUDA kernels for large-scale AI training, inference, and reinforcement learning workloads.
  • Profile and optimize GPU performance for custom compute-bound and memory-bound workloads.
  • Integrate custom kernels into training and inference frameworks such as PyTorch, Megatron, vLLM, and TorchTitan.
  • Build performance tools, benchmarks, integration layers, and GPU-accelerated primitives for graph reasoning, symbolic computation, and hardware simulation.
  • Collaborate with AI researchers and semiconductor experts to translate domain-specific workloads into high-performance GPU code.
  • Release kernels and tooling as contributions to open-source AI and HPC ecosystems.

Requirements

  • Experience writing and optimizing CUDA kernels for large-scale AI workloads, including attention, routing, graph-based operations, or physics-inspired operators.
  • Experience profiling and optimizing GPU performance.
  • Experience integrating custom kernels with AI training and inference frameworks.
  • Experience with NVIDIA hardware and software stacks, including Hopper, Blackwell, NVLink, NCCL, and Triton.
  • Experience building GPU-accelerated primitives for graph reasoning, symbolic computation, or hardware simulation.
  • Ability to collaborate with AI researchers and semiconductor experts on domain-specific performance engineering.

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About Voltai

11-50 employees
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