Senior Staff Software Engineer, SDN Architecture

Crusoe
San Francisco, Sunnyvale, Bellevue
Workplace: OnsiteFull timeUSD 250,000 - 300,000 annuallyFunction: Software EngineeringExperience: 8+ yearsEducation: bachelorsSkills: ["Problem-solving","Technical influence","Mentorship","Collaboration","Written communication"]

Design and build the software-defined networking stack for an AI-first cloud, delivering extreme throughput and low latency for GPU clusters. Own architecture reviews and roadmap contributions for SDN components, optimize Linux kernel modules and packet-processing pipelines, and implement network virtualization features. Collaborate across product, hardware, and infrastructure, troubleshoot production performance issues, evaluate emerging SDN/NFV technologies, and mentor engineers across the stack.

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FursaFursa
Crusoe
Crusoe
3 days ago

Senior Staff Software Engineer, SDN Architecture

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 3 hours agoStatus: Live

Job Summary

Design and build the software-defined networking stack for an AI-first cloud, delivering extreme throughput and low latency for GPU clusters. Own architecture reviews and roadmap contributions for SDN components, optimize Linux kernel modules and packet-processing pipelines, and implement network virtualization features. Collaborate across product, hardware, and infrastructure, troubleshoot production performance issues, evaluate emerging SDN/NFV technologies, and mentor engineers across the stack.
Location: San Francisco, Sunnyvale, Bellevue
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering

Key Responsibilities

  • •Contribute to and refine the technical direction and roadmap for software-defined networking (SDN).
  • •Lead architecture reviews, author design documents for major SDN components, and perform thorough code reviews.
  • •Build and optimize Linux kernel modules and high-performance drivers for packet processing and networking datapaths.
  • •Design and implement network architectures for GPU-to-GPU fabrics, high-speed Ethernet, and specialized AI clusters.
  • •Troubleshoot production issues, perform deep performance tuning, evaluate emerging SDN/NFV technologies, and mentor engineers.

Pay and Benefits

Salary: USD 250,000 - 300,000 annually
Equity and Bonus:Equity
Perks:Health InsuranceDentalVisionEquityPaid LeaveParental LeaveLife Insurance401kCell PhoneVolunteer Time

Key Requirements

  • •8+ years building and operating large-scale networking systems in production, ideally in cloud or hyperscale data centers.
  • •Strong SDN/NFV expertise with systems programming skills in C, C++, Go, or Rust.
  • •Deep knowledge of Linux kernel architecture, memory management, the network stack, and device driver development.
  • •Hands-on packet processing experience using XDP, eBPF, AF_XDP, and/or DPDK.
  • •Familiarity with SmartNICs/accelerators (e.g., NVIDIA ConnectX, BlueField, Intel IPUs) and network virtualization concepts (e.g., SR-IOV, vDPA, virtio).
Experience:8+ yearsCloudData centersHyperscale
Education:Bachelor's in Computer Science, Computer Engineering, or a related analytical field
Skills:Problem-solvingTechnical influenceMentorshipCollaborationWritten communication
Tech Stack:Linux kernelXDPEBPFAF_XDPDPDKCC++GoRustSR-IOVVDPAVirtioSmartNICsNVIDIA ConnectX-6/7BlueField-3Intel IPUsSpine-LeafBGPEVPNVXLAN

Company Brief

Crusoe
Builds vertically integrated, energy-first AI infrastructure and purpose-built AI data centers (Crusoe Cloud), leveraging clean/stranded energy to power large-scale GPU compute for AI training and inference.
Industry: Data Centers
Company Size: Enterprise (1,001+ employees)
Growth: Scaleup
Valuation: Decacorn (USD 10B+)
Funding: Series E+
Headquarters: Denver, United States
Founded: 2018
Glassdoor
Glassdoor: 3.7
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