Networking Operating System Firmware Engineer

OpenAI's Hardware organization is seeking a Networking Operating System Firmware Engineer to build and maintain custom NOS images for AI supercomputers using open source components like SONiC, SAI, FRR. The role involves working across Linux kernel, switch ASIC SDKs, platform drivers, control-plane services, and orchestration layers. The engineer will design, implement, test, and debug production NOS software for large-scale AI fabrics.

Proven experience with SONiC or comparable NOS stacks; strong software engineering fundamentals in C/C++, Python, Go or Rust; experience with Linux kernel internals, network device drivers, platform drivers; experience integrating switch ASIC SDKs and SAI; understanding of L2/L3 forwarding, ECMP, RoCE, BGP, QoS, PFC, buffer tuning, telemetry; experience with platform bring-up and board-level debugging; familiarity with CI/CD pipelines; ability to drive ambiguous feature development.