Graphics Software Engineer

Job Title: Graphics Software Engineer
Location - San Diego, CA
Duration - 6 Months

Job Overview 
We are seeking a contractor Graphics Software Engineer to support development of real-time Gaussian Splatting–based rendering systems for avatar and XR applications running on-device (edge devices such as Android phones and AR glasses). 
This role focuses on GPU optimization, memory-efficient data pipelines, and real-time Gaussian Splatting rendering under mobile constraints. The ideal candidate will be highly hands-on and able to quickly improve performance-critical systems deployed directly on hardware. 

1. Vulkan Graphics Programming
      - Strong experience with Vulkan render pipelines, compute shaders, synchronization, descriptor sets, memory
        barriers, and GPU-driven rendering.
  2. Modern C++ Performance Engineering
      - Expert-level C++ for real-time systems, memory management, multithreading, SIMD-friendly data layouts, and low-
        latency rendering code.
  3. Mobile GPU Optimization
      - Deep understanding of mobile GPU architectures, especially tile-based rendering, bandwidth limits, cache
        behavior, thermal constraints, and power/performance tradeoffs.
  4. GPU Compute and Shader Optimization
      - Ability to optimize GLSL/SPIR-V compute and graphics shaders, including sorting, culling, binning, blending,
        prefix sums, compaction, and parallel data processing.
  5. Graphics Performance Profiling and Debugging
      - Experience identifying GPU bottlenecks using profiling tools, analyzing frame timing, shader occupancy, memory
        bandwidth, overdraw, synchronization stalls, and CPU/GPU overlap.

Principal Duties and Responsibilities:
•    Applies Graphics knowledge and experience to architect, design, implement, and verify the structure and performance of GPU hardware, drivers, features, applications, and tools.
•    Writes code for features, drivers, and APIs using different languages (e.g., C, C++, perl, python) and ensures code will perform effectively on different platforms.
•    Maintains comprehensive pre- and post-silicon tests using tools and methods in different environments (e.g., simulation, emulation, on-device) to verify performance and identify issues.
•    Identifies deficiencies in designs and works with team members to develop solutions to improve designs.
•    Collaborates with teams and external stakeholders to expose new features and functionality that align with needs and goals for implementation and customization.
•    Writes detailed design documentation and feature descriptions for projects to guide developers and/or customers to use or implement software.

 
Key Responsibilities 
1. Gaussian Splatting Rendering 

• Develop and optimize Dynamic Gaussian Splatting (3DGS) rendering pipelines  
• Improve performance of splat-based rendering, including sorting, data layout, and shader efficiency 
• Analyze and resolve issues such as:  
• Splat flickering and popping 
• Sorting inconsistencies 
• Precision differences between CPU and GPU 

2. On-Device GPU Optimization (Android / Edge Devices) 

• Optimize Gaussian Splatting pipelines for mobile GPUs (e.g., Adreno) on Android 
• Ensure efficient execution under limited memory, bandwidth, and power constraints 
• Tune rendering for real-time performance on phones and AR glasses 

3. Data Pipeline & Memory Efficiency 

• Design compact data representations for Gaussian Splatting frame data 
• Optimize CPU → GPU data transfers for real-time rendering 
• Eliminate intermediate processing and reduce runtime memory overhead 

4. Shader Development & Rendering Pipeline Integration 

• Implement GPU shaders tailored to Gaussian Splatting data formats 
• Optimize shader input pathways for efficient on-device execution 
• Integrate rendering pipelines with motion, lighting systems. 

5. Debugging & System Validation 

• Debug complex rendering issues in Gaussian Splatting pipelines 
• Investigate numerical precision issues and GPU/CPU inconsistencies 
• Validate rendering output against reference pipelines 

6. Collaboration & Execution 

• Collaborate closely with XR, vision, and avatar teams 
• Contribute to on-device demos and prototype systems (phones / AR glasses) 
• Execute quickly on well-defined tasks with strong ownership of implementation 

Required Qualifications 

• Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Electrical Engineering, or related field 
• Strong programming skills in C/C++ 
• Experience with Android platform development 
• Experience with GPU programming (OpenGL ES, Vulkan, or similar) 
• Solid understanding of:  
• Real-time rendering pipelines 
• GPU memory management 
• Performance optimization on embedded systems 

Preferred Qualifications 

• Direct experience with Gaussian Splatting / Relighting / Simulation 
• Experience building graphics systems on mobile or XR devices 
• Familiarity with Adreno GPU architecture 
• Experience optimizing for real-time constraints (latency, bandwidth, power) 
• Experience debugging rendering artifacts in GPU pipelines