Research Scientist / Engineer – Performance Optimization

Luma AI · Redwood City

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Company
Luma AI
Location
Redwood City
Employment type
Full-time
Posted
July 24, 2026

About this job

You'll make Luma's multimodal models fast — profiling and optimizing GPU, CPU, and accelerator code so they train efficiently and deploy at scale without sacrificing quality. You'll write the kernels and operations that get the most out of the hardware. This is deep performance work: fused kernels, tensor cores, Triton and CUDA, distributed multi-node deployment. It fits someone with expert GPU-optimization skills and a deep understanding of transformer internals. If you're not at home in CUDA, Triton, and profilers, this is the wrong depth. What You'll Own - Profile and optimize GPU/CPU/accelerator code for maximum utilization and minimal latency. - Write high-performance PyTorch, Triton, and CUDA, dropping to custom operations when needed.…

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