High-Performance Networking Architect

3 days ago


San Francisco, California, United States Magic AI Full time

At Magic AI, we are on a mission to build safe artificial intelligence that accelerates humanity's progress on the world's most important problems. Our approach combines frontier-scale pre-training, domain-specific reinforcement learning, ultra-long context, and inference-time compute to achieve this goal.

About the Role

We are seeking a highly skilled HPC networking lead to join our team. As the primary technical contributor to our internal NCCL-like library, you will be responsible for optimizing performance for communication patterns required by our workloads.

  • Implement and tune custom collective communication algorithms for specific topologies
  • Design and implement networking monitoring systems for our training clusters
  • Implement and benchmark collective communication primitives to achieve low latency and high throughput
  • Contribute to the development of debugging and profiling tools for network communication performance analysis
  • Integrate new communication techniques into the overall system architecture

You will have the opportunity to work on a variety of exciting projects, including implementing and tuning custom collective communication algorithms, designing and implementing networking monitoring systems, and contributing to the development of debugging and profiling tools.

What We're Looking For

To be successful in this role, you will need to have a deep understanding of sharding techniques used in distributed training, experience contributing to a collective communication library such as NCCL or an MPI implementation, and expert knowledge of RoCE/IB RDMA networks and distributed algorithms using RDMA. A track record of contributing to open-source projects related to high-performance networking is also desirable.

We value quick learning and grit just as much as skill and experience. If you are a motivated and experienced professional looking for a challenging and rewarding role, we encourage you to apply.

Compensation and Benefits

We offer a competitive salary range of $150K - $600K per year, depending on experience. In addition to salary, equity is a significant part of total compensation. We also offer a 401(k) plan with 6% salary matching, generous health, dental, and vision insurance, unlimited paid time off, visa sponsorship, and relocation stipend to bring you to San Francisco if possible.



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