GPU Performance Engineer - Neural Reconstruction

About the role

NVIDIA is seeking a GPU Performance Engineer for Neural Reconstruction. This role focuses on optimizing neural reconstruction and Gaussian Splatting workloads, pushing the boundaries of GPU computing, differentiable rendering, computer vision, and production ML systems.

Responsibilities

• Profile end-to-end neural reconstruction workflows and identify bottlenecks across data loading, initialization, training, rendering, evaluation, and export.
• Improve CUDA and PyTorch performance for Gaussian Splatting and neural reconstruction workloads, including camera/lidar data, multiview batching, large-scene rendering, and memory-sensitive training paths.
• Analyze GPU performance using tools such as Nsight Systems, Nsight Compute, NVTX, PyTorch Profiler, CUDA events, and benchmark dashboards.
• Optimize sparse and irregular rendering workloads, including tile-level masking/culling, sparse gradients, batching, and multi-GPU execution.
• Translate high-impact Python, NumPy, or PyTorch bottlenecks into efficient CUDA/C++ or PyTorch-native implementations when appropriate.
• Validate that performance improvements preserve reconstruction quality, numerical behavior, camera/lidar correctness, and production reliability.
• Build repeatable benchmarks, regression tests, and profiling workflows to catch performance and quality regressions early.
• Collaborate with researchers, CUDA engineers, ML engineers, and production teams to turn promising prototypes into maintainable, reviewable, production-quality code.

Requirements

• BS, MS, PhD, or equivalent experience in Computer Science, Computer Engineering, Electrical Engineering, Applied Math, Robotics, Computer Vision, Machine Learning, or a related field (or equivalent experience) with 12+ years of experience.
• Strong programming skills in Python and C++!
• Hands-on experience with PyTorch or a similar tensor/autograd framework.
• Experience optimizing GPU-accelerated workloads using CUDA, C++/CUDA extensions, or related GPU programming approaches.
• Practical experience with profiling and performance analysis, including root-causing CPU/GPU bottlenecks, synchronization overhead, memory pressure, kernel launch overhead, and framework-level inefficiencies.
• Ability to develop benchmarks and validate that optimizations preserve correctness, numerical behavior, and user-visible quality.
• Strong communication skills, including the ability to explain performance tradeoffs, risks, and results to research and engineering partners.

Qualifications

• Experience with Gaussian Splatting, NeRF, differentiable rendering, rasterization, neural rendering, SLAM, 3D reconstruction, or robotics/autonomous-vehicle perception pipelines.
• Deep CUDA performance experience, including memory access patterns, shared memory, atomics, occupancy, launch configuration, synchronization, and numerical stability.
• Experience optimizing PyTorch workloads with custom operators, fused kernels, sparse tensors, distributed training, or distributed rendering.
• Familiarity with camera and lidar geometry, projection models, calibration, rolling shutter, depth rendering, or multi-sensor reconstruction.
• Experience improving large production ML systems where quality metrics, training speed, memory footprint, and developer velocity must be balanced.

Benefits

Widely considered to be one of the technology world's most desirable employers, NVIDIA offers highly competitive salaries and a comprehensive benefits package. As you plan your future, see what we can offer to you and your family here. Your base salary will be determined based on your location, experience, and the pay of employees in similar positions. The base salary range is $224,000 - $356,500 for Level 5, and $272,000 - $431,250 for Level 6. You will also be eligible for equity and benefits.

Pay

Base salary range: $224,000 - $356,500 for Level 5, and $272,000 - $431,250 for Level 6.

Schedule

Not specified.