Senior Software Engineer (C++ GPU Performance)

TL;DR

Senior Software Engineer (C++ GPU Performance): Analyzing and optimizing GPU-based algorithms for self-driving hardware and software with an accent on throughput, latency, and compute utilization. Focus on building real-time instrumentation, profiling GPU hotspots, and designing middleware frameworks for efficient CPU/GPU execution.

Location: Hybrid (Foster City, CA / Seattle, WA / Boston, MA / San Diego, CA)

Salary: $217,000 - $307,000 a year

Company

hirify.global is developing the first ground-up, fully autonomous vehicle fleet and the supporting ecosystem to provide next-generation mobility-as-a-service.

What you will do

• Build real-time instrumentation for performance monitoring of CPU, GPU, latency, and memory.
• Develop offline benchmarking frameworks and tools to analyze performance at scale in CI/vehicle.
• Analyze performance metrics to identify GPU hotspots and implement actionable optimization solutions.
• Support teams in porting serial algorithms to the GPU to maximize compute utilization and reduce latency.
• Design a middleware framework that promotes efficient and performant code development by maximizing CPU and GPU usage.

Requirements

• BS in computer science or related field with 7+ years of experience.
• Strong knowledge of CUDA and recent GPU microarchitectures (e.g., Ampere, Blackwell).
• Experience debugging and optimizing GPU kernels using tools like Nsight.
• Proficiency in C++ and experience working within large code bases in Linux environments.
• Experience in development and profiling of complex multiprocess systems (e.g., robotic systems, game engines).

Nice to have

• Experience with PTX-level programming, CPU SIMD instructions (AVX), and custom CUDA layers (TensorRT, XLA).
• Hands-on work with ML model optimization, including post-training quantization and layer pruning.
• Experience hand-tuning GPU kernels in OpenGL, CUDA, or RocM.
• Proficiency with SQL, DataBricks, or Looker.

Culture & Benefits

• Competitive base salary with additional Amazon RSUs and hirify.global Stock Appreciation Rights.
• Comprehensive health insurance and long-term/short-term disability and life insurance.
• Paid time off including vacation, sick leave, and bereavement.
• Potential sign-on bonus based on location and level.