Senior Staff Software Engineer SDN Architecture
Crusoe is an AI infrastructure company that designs, builds, and operates AI data centers and a cloud platform. It provides managed AI services, GPU compute, model fine-tuning and inference, and infrastructure operations for organizations building and deploying AI workloads.
Maintainer signals as of 8/14/2026
Funding history
Projects
About Crusoe
Crusoe, the AI factory company, provides Crusoe Cloud and Crusoe Intelligence Foundry for AI development and production. Its offerings include managed inference, serverless fine-tuning, high-performance NVIDIA and AMD compute, accelerated storage, RDMA networking, managed Kubernetes and Slurm, and operations tooling. The company also designs, builds, and operates modular AI data-center infrastructure using an energy-first approach, serving customers that need scalable training, inference, and AI platform infrastructure.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will design and build high-performance software-defined networking solutions for AI and HPC workloads. You will work across the Linux kernel, packet processing pipelines, network virtualization, hardware accelerators and software control planes. You will shape SDN architecture and roadmaps, author designs, review code, optimize performance, troubleshoot production issues, integrate SmartNICs and mentor engineers.
Requirements
- 8+ years of experience building and operating large-scale networking systems in production
- Experience with software-defined networking and network functions virtualization
- Systems programming experience in C, C++, Go or Rust
- Knowledge of Linux kernel architecture, memory management, networking and device driver development
- Experience with XDP, eBPF, AF_XDP or DPDK
- Familiarity with SmartNICs and accelerators
- Experience with network virtualization and data center fabrics
- Knowledge of SR-IOV and vDPA
- Strong written communication and collaborative mentoring skills
- Bachelor's degree in Computer Science, Computer Engineering or a related analytical field, or equivalent professional experience
Responsibilities
- Contribute to and refine the technical direction for software-defined networking
- Translate SDN strategy into plans, milestones and measurable outcomes
- Lead architecture reviews and author design documents
- Review code for critical services
- Build and optimize Linux kernel modules and high-performance drivers
- Design network architectures for GPU-to-GPU fabrics and AI clusters
- Implement and tune SR-IOV, vDPA and virtio virtualization features
- Integrate SmartNICs, DPUs and IPUs
- Troubleshoot production issues and tune performance
- Evaluate emerging SDN and NFV technologies
- Contribute to relevant open-source projects
- Mentor engineers and review their designs and code
- Partner with software and operations teams to deploy and manage architecture designs
Benefits
- Competitive compensation and equity packages
- Restricted Stock Units
- Paid time off
- Paid holidays and leave of absence programs
- Comprehensive health, dental and vision insurance
- Employer contributions to HSA account
- Paid parental leave
- Paid life insurance
- Short-term and long-term disability insurance
- Professional development and tuition reimbursement
- Mental health and wellness support
- Commuter benefits
- Cell phone stipend
- 401(k) retirement plan with company match up to 4% of salary
- Volunteer time off
- Global travel insurance and emergency assistance
- Daily meals allowance
- Additional location-specific perks and programs