Senior Network & Site Reliability Engineer

About The Role

We’re building infrastructure that has to perform under real‑world scale, reliability, and security demands – and we’re looking for an engineer who wants to own the foundation it runs on. This isn’t a traditional "keep the lights on" role. You’ll design and operate the global network and reliability layer behind one of the world’s fastest private supercomputers – the fabric powering distributed compute, ML workloads, real‑time analytics, and mission‑critical enterprise systems.

You’ll work across networking, systems, automation, observability, and reliability engineering to scale a platform where performance genuinely matters, with real influence over architecture decisions. It’s a strong fit if you like solving deep infrastructure problems, building resilient systems, automating everything repetitive, and owning architecture rather than just maintaining it.

• Architect and operate scalable, secure network architecture for high‑security requirements and large‑scale machine learning workloads.
• Own network device configuration management end to end, ensuring consistency and reliability across the fleet.
• Improve system and network reliability and performance through automation, observability, and proactive capacity planning.
• Implement and manage complex network protocols and connectivity, including BGP, VPNs, and WAN circuits and external peering.
• Build and maintain comprehensive monitoring, alerting, and incident response – SLOs, runbooks, and on‑call rotations – and drive post‑incident analysis and continuous improvement.
• Ensure security, compliance, and operational readiness across our network and cloud infrastructure.
• Partner across engineering and data science to drive a culture of performance and reliability.

• 8+ years in network or infrastructure engineering, including 5+ years in datacenter operations and/or systems and network administration.
• A strong background in network security, architecture, design, and operations.
• Extensive hands‑on experience with network devices (firewalls, switches, load balancers) and large‑scale architectures and protocols – BGP, QoS, MPLS, and IPsec VPNs.
• Experience designing and operating modern datacenter network fabrics (spine‑leaf, EVPN/VXLAN, ECMP).
• Network automation and IaC tooling (Ansible, Terraform, Nornir, or similar), plus IPAM/DCIM platforms (Net Box, Infoblox, or similar).
• WAN engineering – carrier circuit provisioning and external network peering.
• Familiarity with Kubernetes networking (CNI plugins, ingress, service networking, network policy) and strong operational experience with Linux‑based production infrastructure.
• Experience with monitoring and observability stacks (Prometheus, Grafana, Datadog, ELK, Open Telemetry).
• Solid scripting (Python, Bash) to debug complex network and system issues and automate solutions, plus excellent cross‑functional communication.

• NVIDIA networking technologies – Cumulus Linux, Infini Band, Spectrum‑X, and Blue Field DPUs (this is the fabric behind our SuperPOD).
• Familiarity with data‑intensive platforms (Spark, Airflow, Kafka) and storage network protocols (NFS, LustreFS, iSCSI).
• Security practices for applications and infrastructure, and experience in high‑compliance or SOC 2 environments.

• You want to own mission‑critical network and infrastructure end to end – from architecture to incident management – not just keep it running.
• You’d rather build and automate than direct from a distance, and you want meaningful influence over how a high‑performance platform scales.

Compensation Range: $210K - $240K