Anthropic-posted 3 months ago
$315,000 - $425,000/Yr
San Francisco, CA
Publishing Industries

A systems-level engineer specializing in network infrastructure and network optimization, with expertise in building and maintaining software that interacts with networks. You will be responsible for writing and maintaining software that interfaces between our accelerators and our high-speed networks. This role requires deep technical knowledge of network protocols, kernel-space and/or user-space networks, interfacing with hardware, and the ability to debug and optimize distributed software at the network level.

  • Write and maintain software that interfaces between accelerators and high-speed networks.
  • Diagnose and resolve networking issues in distributed systems, especially at OSI model layers 2-4.
  • Build higher-level abstractions like collectives and RPC.
  • Implement new collective algorithms to improve latency.
  • Optimize congestion control algorithms for large-scale synchronous workloads.
  • Debug kernel-level network latency spikes.
  • Expert-level proficiency with network protocols and networking concepts.
  • Deep kernel networking knowledge: TCP/IP stack internals, XDP, eBPF, io_uring, and epoll.
  • User-space networking experience: DPDK, RDMA, kernel bypass techniques.
  • Strong programming skills in a systems programming language, including memory management, lock-free data structures, and NUMA-aware programming.
  • Experience with software, driver, and OS performance optimization tools and techniques.
  • Comfort with or desire to learn Rust.
  • 5+ years of experience in systems programming or network programming.
  • Understanding of ML accelerators and accelerator drivers.
  • Demonstrated ability to design new network protocols.
  • Experience with PCIe and drivers for PCIe devices.
  • Expertise in algorithms used in networking, including compression and graph algorithms.
  • Experience programming on SmartNICs.
  • Background in HPC, telecommunications, host networking software, OS/kernel engineering, or embedded systems.
  • Strong debugging mindset with patience for complex, multi-layered issues.
  • Competitive compensation and benefits.
  • Optional equity donation matching.
  • Generous vacation and parental leave.
  • Flexible working hours.
  • Lovely office space for collaboration.
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