SpacexAI is building and operating large-scale networks that underpin training and inference infrastructure, including high-performance / supercompute fabrics that connect GPU clusters, plus the core, edge, and datacenter networks that keep that infrastructure reachable and reliable.
We need a Network Engineer who is strong on fundamentals and comfortable owning production network design, deployment, and operations end to end. This is a hands-on engineering seat — not a NOC technician role and not a network-software (telemetry/ZTP platform) SWE role. You will design and build networks, qualify platforms, ship changes safely, and keep availability and performance high as we scale.
Travel to Memphis (and other build sites) may be required for capacity build-outs. You will participate in a team on-call rotation.
Key Skills for This Role
ansiblepythonterraform
Full Job Posting
About the Role
SpacexAI is building and operating large-scale networks that underpin training and inference infrastructure, including high-performance / supercompute fabrics that connect GPU clusters, plus the core, edge, and datacenter networks that keep that infrastructure reachable and reliable.
We need a Network Engineer who is strong on fundamentals and comfortable owning production network design, deployment, and operations end to end. This is a hands-on engineering seat — not a NOC technician role and not a network-software (telemetry/ZTP platform) SWE role. You will design and build networks, qualify platforms, ship changes safely, and keep availability and performance high as we scale.
Travel to Memphis (and other build sites) may be required for capacity build-outs. You will participate in a team on-call rotation.
Responsibilities
Design, deploy, and operate production datacenter and campus/core networks at scale
Own routing and switching configuration standards (BGP and at least one IGP such as OSPF or IS-IS), including change design, peer reviews, and execution
Apply for this job in 1 click
Skip the repetitive application forms
Install the Base Career Chrome Extension and autofill job applications across major job boards with your profile.
Trusted by over 500,000 job seekers on Base Career
Qualify new network platforms, optics, and topologies; contribute to architecture and capacity planning
Build and improve monitoring, alerting, and operational documentation so issues are caught and fixed quickly
Troubleshoot Layer 2/Layer 3 incidents end to end — from link flaps and optics through routing and traffic engineering — and drive root cause and lasting fixes
Automate repetitive network tasks with Python, Ansible, or similar tooling where it reduces toil
Partner with compute, facilities, and software teams during cluster build-outs and maintenance windows
Support high-performance / supercompute network environments (Ethernet AI/HPC fabrics, RoCE/RDMA-capable designs) as part of the broader network estate — deep specialist RoCE/NCCL ownership is a plus, not the bar for this seat
Basic Qualifications
Several years designing and/or operating production networks in a datacenter, ISP, cloud, or large enterprise environment
Solid hands-on experience with BGP and at least one interior routing protocol
Working knowledge of TCP/IP, VLANs, EVPN/VXLAN or equivalent datacenter overlays, and optics / high-speed Ethernet
Experience troubleshooting live production network incidents and participating in on-call
Strong written and verbal communication; clear change docs and incident notes
Preferred Skills and Experience
Experience with modern datacenter vendors (e.g. Arista, Cisco, Juniper, Nvidia/Mellanox)
Familiarity with high-performance or supercompute networking (RoCEv2, congestion control, GPU cluster fabrics) — useful context for our environment, not a hard filter
Network automation (Python, Ansible, Terraform, or similar) used in production
Experience with EVPN, leaf-spine, and large-scale Ethernet fabrics
Prior work supporting rapid datacenter or cluster capacity build-outs
Additional Requirements
Willing to work onsite in Dublin
SpaceXAI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.
About xAI
Technology1,001-5,000Founded 2023
xAI is an artificial intelligence company founded by Elon Musk that develops AI systems to accelerate scientific discovery. Its main products include the Grok AI chatbot and the Colossus supercomputer, one of the world's largest AI training clusters.