Research Scientist / Engineer – Performance Optimization

About the Role

The Performance Optimization team at Luma is dedicated to maximizing the efficiency and performance of our AI models. Working closely with both research and engineering teams, this group ensures that our cutting-edge multimodal models can be trained efficiently and deployed at scale while maintaining the highest quality standards.

Responsibilities

• Profile and optimize GPU/CPU/Accelerator code for maximum utilization and minimal latency

• Write high-performance PyTorch, Triton, CUDA, deferring to custom PyTorch operations if necessary

• Develop fused kernels and leverage tensor cores and modern hardware features for optimal hardware utilization on different hardware platforms

• Optimize model architectures and implementations for distributed multi-node production deployment

• Build performance monitoring and analysis tools and automation

• Research and implement cutting-edge optimization techniques for transformer model

Experience

• Expert-level proficiency in Triton/CUDA programming and GPU optimization

• Strong PyTorch skills

• Experience with PyTorch kernel development and custom operations

• Proficiency with profiling tools (NVIDIA Nsight, torch profiler, custom tooling)

• Deep understanding of transformer architectures and attention mechanisms

• (Preferred) Experience with compilers/exporters such as torch.compile, TensorRT, ONNX, XLA

• (Preferred) Experience optimizing inference workloads for latency and throughput

• (Preferred) Experience with Triton compiler and kernel fusion techniques

• (Preferred) Knowledge of warp-level intrinsics and advanced CUDA optimization

• (Preferred) Background in compiler optimization or hardware-software co-design

Compensation

• The pay range for this position in California is $180,000 - $250,000yr; however, base pay offered may vary depending on job-related knowledge, skills, candidate location, and experience. We also offer competitive equity packages in the form of stock options and a comprehensive benefits plan. 

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