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Networking Operating System Firmware Engineer

OpenAI· Scaling
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Hybrid (San Francisco)$225k - $423kFull-timePosted 5mo ago

About the role

Role focused on bootstrapping and scaling the switching layer of OpenAI's AI supercomputers by designing, implementing, and maintaining custom NOS images using open source components (SONiC, SAI, FRR) across Linux kernel, switch ASICs, platform drivers, control-plane services, and orchestration layers.

Responsibilities

  • Design, develop, and maintain custom NOS images for large-scale AI fabrics, using open source components from SONiC, FRR, and related networking stacks.
  • Integrate, build and configure Linux kernel components, device drivers, switch ASIC SDKs, and SAI layers.
  • Bring up new switch platforms, including thermal and fan control, power monitoring, transceiver management, watchdogs, OSFP CMIS, LEDs, CPLDs, and board-specific platform logic.
  • Extend and customize NOS services for routing, telemetry, control-plane state, and distributed automation.
  • Implement and debug route, neighbor, next-hop, and ECMP programming flows from control-plane intent through ASIC hardware state.
  • Build software mechanisms that distinguish control-plane acceptance, SAI/SDK acceptance, and explicit hardware programming acknowledgement.
  • Work with hardware teams to validate ASIC configurations, link bring-up, SerDes tuning, buffer profiles, and performance baselines.
  • Evaluate switch silicon SDK releases, track vendor deliverables, and validate platform requirements with vendors and ASIC partners.
  • Debug complex issues spanning kernel drivers, platform monitoring, NOS services, routing agents, orchestration services, hardware signals, ASIC state, and network topology.
  • Integrate switches into fleet-wide monitoring, remote diagnostics, telemetry pipelines, and automated lifecycle workflows.
  • Develop robust CI/build pipelines for reproducible NOS builds and controlled rollout across the fleet.
  • Support factory bring-up and qualification all the way through mass deployment.
  • Collaborate on networking protocols and technologies that improve performance and reliability at AI factory scale.

Qualifications

  • Proven experience working with SONiC or comparable NOS stacks such as FBOSS, Cumulus Linux, Arista EOS, Junos PFE-level integration, or equivalent platform software.
  • Strong software engineering fundamentals: clear interfaces, data models, state-machine design, error handling, testing, observability, performance debugging, and maintainable C/C++, Python, Go or Rust code.
  • Experience with Linux kernel internals, network device drivers, platform drivers, hwmon, I2C/SMBus, CPLDs, or board-level platform software.
  • Experience integrating or debugging Broadcom, Marvell, NVIDIA, Intel, or comparable switch ASIC SDKs and SAI implementations.
  • Understanding of L2/L3 forwarding, ECMP, RoCE, BGP, QoS, PFC, buffer tuning, and telemetry.
  • Experience with platform bring-up and board-level debugging across thermal, fan, power, transceiver, LED, watchdog, CPLD, or OSFP CMIS flows.
  • Experience with OpenConfig gNMI interfaces, YANG data models, or structured telemetry is helpful.
  • Familiarity with CI/CD pipelines, distributed config and state management, reproducible builds, and large-scale automation.
  • Ability to independently drive ambiguous NOS or platform feature development from problem definition through implementation, validation, rollout, and debugging across software, hardware, and vendor boundaries.
  • Familiarity with Rust or Go is a plus.

Skills

Required:SONiC or comparable NOS stack experienceC/C++, Python, Go or RustLinux kernel internals / device driversASIC SDKs and SAI implementationsNetworking fundamentals

Benefits

  • Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
  • Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
  • 401(k) retirement plan with employer match
  • Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
  • Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
  • 13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)
  • Mental health and wellness support
  • Employer-paid basic life and disability coverage
  • Annual learning and development stipend to fuel your professional growth
  • Daily meals in our offices, and meal delivery credits as eligible
  • Relocation support for eligible employees
  • Additional taxable fringe benefits, such as charitable donation matching and wellness stipends, may also be provided.
Last updated Oct 22, 2026. Interested? Apply on the company site.

About OpenAI

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