Sr. Graphics Software Engineer

Role: Sr. Graphics Software Engineer
Location: San Diego, CA – 100% Onsite
Duration: 3 months
Job Overview
Client is seeking a Senior Graphics Software Engineer to support the development and optimization of real-time Gaussian Splatting (3DGS) rendering systems for avatar and XR applications running directly on Android and edge devices, including smartphones and AR glasses. The role is highly hands-on and focused on GPU programming, Vulkan, modern C++, mobile GPU optimization, shader development, memory efficiency, and real-time rendering performance.
The engineer will work closely with XR, computer vision, graphics, and avatar teams to improve performance-critical rendering systems running on Qualcomm Snapdragon/Adreno platforms.
Key Responsibilities
Gaussian Splatting & Real-Time Rendering

• Develop and optimize Dynamic Gaussian Splatting (3DGS) rendering pipelines.
• Improve splat rendering performance through sorting, data layout, and shader optimization.
• Troubleshoot rendering issues such as flickering, popping, sorting inconsistencies, and CPU/GPU precision differences.
• Support real-time rendering pipelines for avatar and XR applications.

GPU & Mobile Optimization

• Optimize rendering pipelines for mobile GPUs, particularly Qualcomm Adreno.
• Optimize performance under mobile constraints such as limited memory, bandwidth, power, and thermal budgets.
• Tune rendering performance for Android phones and AR glasses.
• Analyze GPU bottlenecks, frame timing, memory bandwidth, synchronization, and CPU/GPU overlap.

Shader & GPU Programming

• Develop and optimize graphics and compute shaders using GLSL/HLSL, SPIR-V, and Vulkan.
• Work with GPU compute techniques such as sorting, culling, binning, blending, prefix sums, and parallel processing.
• Optimize shader input/data pathways for efficient on-device execution.
• Integrate rendering pipelines with motion and lighting systems.

Data Pipeline & Memory Optimization

• Design compact and memory-efficient representations for Gaussian Splatting frame data.
• Optimize CPU-to-GPU data transfers.
• Reduce intermediate processing and runtime memory overhead.
• Apply efficient memory-management techniques for real-time embedded systems.

Debugging & Validation

• Debug complex graphics and rendering issues on physical devices.
• Investigate numerical precision issues and CPU/GPU inconsistencies.
• Use graphics profiling and debugging tools to identify performance bottlenecks.
• Validate rendering output against reference implementations.
• Support pre- and post-silicon testing across simulation, emulation, and on-device environments.

Collaboration

• Collaborate with XR, computer vision, graphics, and avatar teams.
• Contribute to on-device demos and prototypes for phones and AR glasses.
• Work with internal teams and stakeholders to implement new graphics features.
• Prepare technical design documentation and feature specifications.

Must-Have Skills

1. C/C++ programming, preferably modern C++17/C++20
2. Vulkan graphics programming
3. GPU programming and acceleration
4. Real-time graphics/rendering pipelines
5. GPU performance optimization
6. Mobile/embedded GPU optimization
7. Android platform development
8. GLSL/HLSL and SPIR-V
9. GPU memory management and CPU-to-GPU data optimization

Required Technologies