About the Role

We’re looking for a Senior HPC Developer who wants to grow in a startup environment while working on cutting-edge GPU and high-performance networking problems. You’ll work across multi-node, multi-GPU systems and have the opportunity to learn deeply across the full stack—from kernel and drivers to GPUs and networks.

This role is ideal for someone who is hands-on, curious, and excited to learn by building and debugging real systems at scale.

What You’ll Do

• Build and optimize high-performance GPU and networking subsystems
• Work with collective communication libraries and algorithms for multi-node, multi-GPU workloads
• Debug performance issues across kernel, driver, GPU, and network layers
• Develop and improve GPU-aware networking solutions
• Profile, analyze, and tune system performance using low-level tooling
• Collaborate closely with a small engineering team and take ownership of core systems

What You Bring

• 5+ years of experience in systems, HPC, or performance-critical software development
• Strong proficiency in low-level C/C++
• Solid understanding of RDMA networking, including InfiniBand, RoCE, and IBVerbs
• Experience working with multi-node, multi-GPU workloads
• Familiarity with collective communication libraries and communication algorithms
• Ability and willingness to debug complex issues across hardware and software boundaries
• Curiosity and eagerness to learn in a fast-moving startup environment

Bonus Points

• Experience with congestion control mechanisms such as DCQCN
• Exposure to GPU-aware networking or advanced communication optimizations
• Experience with performance profiling, tracing, or observability tooling
• Background in AI infrastructure, HPC clusters, or distributed systems

Enjoy

• Challenging projects.
• A friendly and inclusive workplace culture.
• Competitive compensation.
• A great benefits package.

Catered lunch.