Senior HPC / CUDA Optimization Engineer

Quick Facts

• Role: Senior HPC / CUDA Optimization Engineer

Description

Design, develop, and optimize CUDA kernels and performance-critical HPC software for large-scale scientific and engineering applications. You will profile GPU and distributed performance, improve kernel efficiency and memory behavior, and build scalable multi-GPU solutions using MPI, NCCL, and NVSHMEM. The role also includes debugging complex GPU and distributed issues and applying HPC and numerical best practices to existing codebases.

Responsibilities

• Design, develop, and optimize CUDA kernels for large-scale scientific and engineering applications
• Analyze and improve GPU performance using profiling tools to identify and resolve bottlenecks
• Implement and optimize distributed and multi-GPU computing solutions using MPI, NCCL, and NVSHMEM
• Develop and maintain high-performance C++ and Python code for performance-critical, high-load systems
• Collaborate with cross-functional teams to architect scalable and efficient software solutions
• Debug complex performance and memory issues across GPU architectures and distributed systems
• Research and apply best practices in HPC, numerical methods, and GPU computing to improve existing codebases

Requirements

• 5+ years of professional experience with C++ and Python development
• Deep knowledge of CUDA, GPU architecture, PTX, memory hierarchy, and kernel optimization
• Experience with GPU profiling, performance analysis, and bottleneck identification
• Hands-on experience with distributed and multi-GPU computing (MPI, NCCL, NVSHMEM)
• Experience developing and optimizing performance-critical, high-load software systems
• Strong debugging and software architecture skills

Benefits

• Hybrid by design mode with the opportunity to work remotely within Poland
• Chance to work abroad for up to 60 days annually
• Career development programs; thought leadership, mentoring, soft skills and well-being programs
• Certification support (Anthropic, Gemini, GCP, Azure, AWS)
• English classes
• Stable pay
• Employee Stock Purchase Plan with a 15% discount
• Benefits package (health insurance, multisport, shopping vouchers)
• Referral bonuses up to $2,000
• Offices with entertainment and relaxation zones (table tennis and football, free snacks, coffee, etc.)
• Corporate, social and well-being events
• Note: Benefits listed apply to employees only; B2B contractor cooperation terms are agreed individually