# Senior Staff Software Engineer, SDN Architecture

Hiring organization: [Crusoe](https://career.thegoodapps.co/organizations/crusoe)

Canonical page: https://career.thegoodapps.co/jobs/abdb615e-5772-4afb-9adb-01c03d7f55be

Listed on Crusoe's own careers site. Applications go to them directly.

- Seniority: Senior Staff
- Location: San Francisco, CA
- Salary: 250000 – 300000 USD per year

## Summary

Crusoe seeks a Senior Staff Software Engineer to architect and build the software-defined networking stack powering their AI-first cloud infrastructure, optimizing for extreme throughput and low latency on GPU clusters. This role suits a deep systems engineer with Linux kernel expertise and high-performance networking experience who can influence technical direction while mentoring a growing team.

_Our summary, not Crusoe's wording._

## Skills named

Border Gateway Protocol (BGP), C++, Go, Linux Kernel, Rust

## Required

- 8+ years building and operating large-scale networking systems in production
- Strong SDN and NFV experience with systems programming in C, C++, Go, or Rust
- Strong Linux kernel architecture and network stack knowledge
- Hands-on experience with kernel bypass and high-speed packet processing (XDP, eBPF, AF_XDP, or DPDK)
- Familiarity with SmartNICs and accelerators (NVIDIA ConnectX-6/7, BlueField-3, or Intel IPUs)
- Experience with network virtualization and data center fabrics (Spine-Leaf, BGP, EVPN, VXLAN) and tools like OVS or OVN
- Knowledge of SR-IOV and vDPA with ability to debug across control and data planes
- Bachelor's degree in Computer Science, Computer Engineering, or related field (or equivalent professional experience)

## Nice to have

- Open-source contributions to OVS, OVN, Cilium, or Multus
- Hands-on experience deploying and operating physical network devices
- Experience with network automation or complex orchestration tooling
- Experience building networking stacks for multi-node GPU training at scale

Apply on Crusoe's site: https://jobs.ashbyhq.com/Crusoe/9a539958-c8c8-43d9-b075-dea8ebc9b799/application