Network Engineer (Supercomputer Infrastructure)
xAI · Memphis, Tennessee; Southaven, Mississippi
About this role
**Network Engineer (Supercomputer Infrastructure)** **ABOUT THE ROLE:** SpaceXAI is seeking an exceptional network engineer with experience in mission-critical, large-scale production environments to support the design, build-out, and operation of networks powering AI supercomputer campuses. You'll provide design and operational support for fabrics used by GPU training and inference clusters, site operations, automation, and facilities teams. **KEY RESPONSIBILITIES:** • Design and implement highly available, low-latency, high-bandwidth networks for AI training fabrics, inference front-ends, and storage • Design and maintain supercomputer data center and campus networks per company standards • Evaluate, procure, and deploy network hardware (400G/800G switches, NICs, firewalls, optical multiplexers) • Contribute to network automation tooling; implement configuration analysis and GitOps/IaC frameworks • Coordinate network change windows and perform maintenance including evenings/weekends • Troubleshoot network issues affecting cluster health; publish RCA documentation • Provide direct support during cluster bring-up and production campaigns; serve as on-call engineer • Proactively monitor fabric health, congestion, and collective performance • Create and maintain network documentation and operational procedures • Ensure compliance with industry and cybersecurity standards (ITAR, ISO, NIST) **BASIC QUALIFICATIONS:** • Bachelor's in CS/Engineering/STEM + 3+ years network engineering experience (OR 5+ years without degree) • Extensive hands-on experience with Layer 2/3 networks in latency-sensitive/data-center environments • Functional experience with multiple network vendors in production • Experience with GitOps and Infrastructure as Code frameworks **PREFERRED SKILLS:** • Strong OSI model and network standards knowledge • Hands-on experience with Cisco, Arista, Juniper, or NVIDIA Spectrum-X switches • RoCEv2 Ethernet AI/HPC fabric experience; InfiniBand a plus • Understanding of AI training/inference traffic patterns and NCCL • WDM and large-scale fiber plant experience • Network segmentation, QoS, multicast, and redundancy protocols • Scripting proficiency (Bash/PowerShell/Python) and automation frameworks • Linux and Windows system administration experience • CCNA or CCNP certifications • Experience with real-time systems or OT networks **ADDITIONAL REQUIREMENTS:** • Ability to pass background checks for site access • Physical dexterity; ability to work in tight quarters • Availability for extended hours/weekends and 24x7 on-call support • Willingness to travel up to 20% between campuses • Ability to lift 30 lbs, work at heights, and drive (valid license) *SpaceXAI is an equal opportunity employer.*
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