Principal HPC Network Engineer

Mirantis

Senior HPC Network Engineer designing and managing high-performance networking infrastructures for AI applications. Ensuring reliability and scalability while troubleshooting complex network issues.

Posted 7/7/2026full-timeRemote • 🇪🇺 Anywhere in EuropeLead💰 $90,000 - $105,000 per yearWebsite

Tech Stack

Tools & technologies

AnsibleLinuxPythonSwitchingTCP/IPTerraform

About the role

Key responsibilities & impact

Design, deploy, 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, ensuring minimal downtime and optimal performance.
Manage and optimize InfiniBand components, including switches, HCAs, subnet managers, and 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 and resolve issues related to routing, switching, latency, and throughput across hybrid network environments.
Collaborate with compute, storage, and platform teams to support HPC workloads and cluster operations.
Develop and maintain documentation for network architecture, configurations, and operational procedures.
Participate in on-call rotations and provide escalation support for critical incidents.
Lead or contribute to network upgrades, migrations, and new deployments.

Requirements

What you’ll need

5+ years of experience 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, and 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).
Strong analytical and problem-solving skills.
Certifications such as FCSS/FCNSP (Fortinet), CCNP/CCIE, or equivalent.
Experience with automation and Infrastructure as Code tools (e.g., Ansible, Terraform).

Benefits

Comp & perks

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 environments.
Help define operational standards and reliability practices for next-generation AI infrastructure services.
Influence the adoption of AI-powered operational capabilities through k0rdent AI.
Work alongside highly skilled engineers solving complex infrastructure and platform challenges at scale.
Join a growing organisation investing heavily in AI infrastructure, platform services, and operational innovation.

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

InfiniBand Fabric ManagementNetwork TroubleshootingPerformance TuningRouting ProtocolsVLAN ConfigurationNetwork DesignLinux ScriptingNetwork Security ImplementationCapacity PlanningNetwork Monitoring

Soft Skills

Analytical SkillsProblem-Solving SkillsCollaboration

Certifications

FCSSFCNSPCCNPCCIE