Networking Operating System Firmware Engineer

About this role

OpenAI is hiring a Networking Operating System Firmware Engineer to design and maintain custom NOS images for AI supercomputers. You'll work with open-source networking stacks like SONiC, integrate Linux kernel and switch ASIC components, and debug production systems spanning software, hardware, and vendor partnerships.

What you'll do

• Design and maintain custom NOS images using SONiC, FRR, and related open-source networking components
• Integrate Linux kernel, device drivers, switch ASIC SDKs, and SAI layers for new switch platforms
• Bring up new switch platforms including thermal, fan, power, transceiver, and board-level platform logic
• Debug complex issues spanning kernel drivers, NOS services, routing agents, ASIC state, and network topology
• Develop CI/build pipelines for reproducible NOS builds and controlled fleet rollout
• Collaborate with hardware teams on ASIC validation, link bring-up, SerDes tuning, and performance baselines

What they're looking for

• SONiC, FBOSS, or comparable NOS stack experience
• Linux kernel internals and network device drivers
• Switch ASIC SDK integration (Broadcom, Marvell, NVIDIA, Intel)
• C/C++, Python, Go, or Rust programming
• L2/L3 networking, ECMP, BGP, QoS, and telemetry
• Platform bring-up and board-level debugging (thermal, power, transceiver management)
• CI/CD pipelines and distributed systems automation
• OpenConfig gNMI and YANG data models (helpful)

Benefits

• Hybrid work model with 3 days in office per week
• Based in San Francisco, CA
• Relocation assistance provided