Network Engineer

Details

SpaceXAI is building and operating large-scale networks that underpin training and inference infrastructure, including high-performance and supercompute fabrics connecting GPU clusters, as well as the core, edge, and datacenter networks that keep the infrastructure reachable and reliable.

This is a hands-on engineering role focused on production network design, deployment, qualification, and operations. The position is not a NOC technician role or a network-software telemetry/ZTP platform software engineering role. Travel to Memphis and other build sites may be required for capacity build-outs, and the role includes participation 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, including BGP and at least one interior gateway protocol such as OSPF or IS-IS.
• Lead change design, peer reviews, and execution.
• Qualify new network platforms, optics, and topologies; contribute to architecture and capacity planning.
• Build and improve monitoring, alerting, and operational documentation.
• Troubleshoot Layer 2 and Layer 3 incidents end to end, from link flaps and optics through routing and traffic engineering, and drive root-cause analysis 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 and supercompute network environments, including Ethernet AI/HPC fabrics and RoCE/RDMA-capable designs. Deep specialist RoCE/NCCL ownership is a plus but is not required.

Requirements

• Several years of experience 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, optics, and high-speed Ethernet.
• Experience troubleshooting live production network incidents and participating in on-call rotations.
• Strong written and verbal communication skills, including the ability to produce clear change documentation and incident notes.
• Willingness to work onsite in Dublin.

Preferred Skills and Experience

• Experience with modern datacenter vendors such as Arista, Cisco, Juniper, and Nvidia/Mellanox.
• Familiarity with high-performance or supercompute networking, including RoCEv2, congestion control, and GPU cluster fabrics.
• Production experience with network automation using Python, Ansible, Terraform, or similar tools.
• Experience with EVPN, leaf-spine architectures, and large-scale Ethernet fabrics.
• Prior experience supporting rapid datacenter or cluster capacity build-outs.

Compensation and Benefits

• Base salary: $100,000–$150,000 per year.
• Equity.
• Comprehensive medical, vision, and dental coverage.
• Access to a 401(k) retirement plan.
• Short- and long-term disability insurance.
• Life insurance and various other discounts and perks.