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We’re seeking a Networking Operating System Firmware Engineer to help bootstrap and scale the switching layer of our AI supercomputers. In this role, you’ll build and maintain custom SONiC NOS images from scratch, working across the Linux kernel, switch ASIC SAI/SDKs, platform drivers, control-plane services, and orchestration layers. You will validate, configure, and optimize switch platforms used across our high-bandwidth cluster fabric, ensuring performance, reliability, availability, and seamless integration with fleet automation. You’ll collaborate with hardware and systems teams and guide vendors to meet stringent technical expectations.
Job Responsibility:
Design, develop, and maintain custom SONiC NOS images for large-scale bleeding-edge AI fabrics
Integrate and configure Linux kernel components, device drivers, switch ASIC SDKs, and SAI layers
Bring up new switch platforms (thermal/fan control, power monitoring, transceiver management, watchdogs, OSFP CMIS, LEDs, CPLDs, etc.)
Extend and customize SONiC services for routing, telemetry, control-plane state, and distributed automation
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 define platform requirements with vendors and ASIC partners
Debug complex issues spanning kernel, platform drivers, SONiC dockers, routing agents, orchestration services, hardware signals, 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, architect, implement, and deploy novel networking protocols and technologies to achieve maximum performance and reliability at AI factory scale
Requirements:
Proven experience working with SONiC or comparable NOS stacks (FBOSS, Cumulus Linux, Arista EOS, Junos PFE-level integration, etc.)
Experience with updating OpenConfig gNMI interfaces and YANG data models
Strong background in Linux kernel, network device drivers, and low-level OS internals
Experience integrating Broadcom / Marvell / NVIDIA / Intel ASIC SDKs and SAI implementations
Proficiency in C, C++ and Python
Deep understanding of L2/L3 forwarding, ECMP, RoCE, BGP, QoS, PFC, buffer tuning, and telemetry
Hands-on experience with hardware platform bring-up and board-level debugging
Familiarity with CI/CD pipelines, distributed config/state management, and large-scale automation
Strong cross-functional problem solving in high-performance, distributed environments
Ability to lead teams to deliver a project end to end
Nice to have:
familiarity with Rust/Go is a plus
What we offer:
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
Offers Equity
performance-related bonus(es) for eligible employees