Research Engineer - CUDA Kernel Engineering

Voltai, Inc

$120K — $180K *
Enterprise Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of experience in GPU programming and optimization
  • Proficient in writing CUDA kernels for large-scale AI applications
  • Experience with profiling GPU performance for compute or memory-bound tasks
  • Familiarity with integration of custom kernels into frameworks like PyTorch and Megatron
  • Knowledge of NVIDIA hardware and software ecosystems
  • Ability to develop GPU-accelerated solutions for diverse computational problems

Responsibilities

  • Develop and optimize state-of-the-art CUDA kernels for AI semiconductor design
  • Integrate GPU kernels into training and inference systems
  • Create performance benchmarks and tools for GPU utilization in AI workloads
  • Collaborate with engineers and researchers in semiconductor and AI fields
  • Contribute optimized kernels to the open-source AI and HPC communities

Benefits

  • Work alongside a diverse team of industry-leading experts
  • Opportunity to contribute to cutting-edge AI and semiconductor research
  • Access to state-of-the-art NVIDIA hardware and software
  • Unique chance to impact the future of semiconductor design through AI
  • Collaboration with top academic institutions and industry investors
Full Job Description
About the Role

You will develop, integrate, and optimize state-of-the-art CUDA kernels to power AI models that accelerate semiconductor design and verification. Your work will enable large-scale model training, inference, and reinforcement learning systems that reason about circuit layouts, generate and validate RTL, and optimize chip architectures - running efficiently across thousands of GPUs.
You'll build tools, performance benchmarks, and integration layers that push the limits of GPU utilization for compute-intensive workloads in AI-driven hardware design. Working closely with researchers and engineers, you'll help make Voltai the world's leading AI + semiconductor research organization. You'll also release your kernels and tooling as contributions to the open-source AI and HPC ecosystems.

You might thrive in this role if you have experience with
  • Writing and optimizing CUDA kernels for large-scale AI workloads (attention, routing, graph-based operations, physics-inspired operators, etc.)
  • Profiling and optimizing GPU performance for custom compute or memory-bound workloads
  • Integrating custom kernels into cutting-edge training and inference frameworks (e.g., PyTorch, Megatron, vLLM, TorchTitan)
  • Working with the latest NVIDIA hardware and software stacks (Hopper, Blackwell, NVLink, NCCL, Triton)
  • Building GPU-accelerated primitives for graph reasoning, symbolic computation, or hardware simulation tasks
  • Collaborating with AI researchers and semiconductor experts to translate domain-specific workloads into high-performance GPU code

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