Principal HPC Network Engineer (remote in the EU)

Stack

Responsibilities

• ▹Design and maintain high-performance network infrastructures for HPC environments, with a strong focus on InfiniBand fabrics
• ▹Troubleshoot complex network issues across InfiniBand and Ethernet environments
• ▹Manage and optimize InfiniBand components: switches, HCAs, subnet managers, fabric configurations
• ▹Perform performance tuning, monitoring, and capacity planning for HPC networking systems
• ▹Implement and maintain network security using Fortinet solutions (FortiGate, FortiManager, FortiAnalyzer)
• ▹Diagnose routing, switching, latency, and throughput issues across hybrid network environments
• ▹Collaborate with compute, storage, and platform teams to support HPC workloads
• ▹Develop and maintain documentation for network architecture, configurations, and procedures
• ▹Participate in on-call rotations, provide escalation support for critical incidents
• ▹Lead or contribute to network upgrades, migrations, and new deployments

Requirements

• ▹5+ years in network engineering, with a focus on HPC or data center environments
• ▹Strong hands-on experience with InfiniBand technologies (e.g. Mellanox/NVIDIA)
• ▹Solid understanding of networking fundamentals: TCP/IP, routing protocols (BGP, OSPF), VLANs, QoS, network design
• ▹Proven experience deploying and troubleshooting Fortinet solutions (FortiGate, FortiManager, VPNs, firewall policies)
• ▹Experience with network performance analysis and troubleshooting tools
• ▹Familiarity with Linux systems and scripting for automation (e.g. Bash, Python)

Nice to have

• ▹Experience with large-scale HPC clusters or AI/ML infrastructure
• ▹Knowledge of RDMA, MPI, and low-latency networking concepts
• ▹Certifications such as FCSS/FCNSP (Fortinet), CCNP/CCIE, or equivalent
• ▹Experience with automation and Infrastructure as Code tools (Ansible, Terraform)

Soft skills

What we offer

• ▹Operate some of the most advanced AI infrastructure environments in production today
• ▹Work with the latest NVIDIA GPU technologies, Kubernetes platforms, and high-performance networking
• ▹Help define operational standards for next-generation AI infrastructure services

About the company

Mirantis is a Leader for Container Management in G2 (#2 after AWS), the Kubernetes-native AI infrastructure company, investing heavily in AI infrastructure and platform services.