Senior HPC Networking Architect - InfiniBand & Fortinet

Mirantis; Barcelona; On-site; EUR 90,000 - 120,000; Full time

Job summary

Mirantis seeks a Senior HPC Networking Engineer to design, deploy, and manage high-performance networks for AI and data-intensive workloads. The role focuses on InfiniBand fabrics, Fortinet security, and seamless integration with Kubernetes-based infrastructure.

You will diagnose and optimize hybrid network environments, collaborating with compute and storage teams to ensure scalable, reliable HPC operations and secure data flows across on-prem and cloud-like environments.

Qualifications

• 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 TCP/IP, routing (BGP, OSPF), VLANs, QoS, and network design.
• Proven experience deploying and troubleshooting Fortinet solutions (FortiGate, FortiManager, VPNs).
• Experience with network performance analysis and troubleshooting tools.
• Familiarity with Linux systems and scripting for automation (Bash, Python).
• Strong analytical and problem-solving skills.

Responsibilities

• Design, deploy, and maintain high-performance network infrastructures for HPC environments, focusing on InfiniBand fabrics.
• Troubleshoot complex network issues across InfiniBand and Ethernet environments to minimize downtime.
• Manage InfiniBand components: switches, HCAs, subnet managers, fabric configs.
• Perform performance tuning, monitoring, and capacity planning for HPC networking systems.
• Implement and maintain network security using Fortinet solutions (FortiGate, FortiManager, FortiAnalyzer).
• Collaborate with compute/storage/platform teams to support HPC workloads and cluster operations.
• Develop and maintain documentation for network architecture and procedures.
• Participate in on-call rotations and provide escalation support for incidents.
• Lead or contribute to network upgrades, migrations, and new deployments.

Skills

InfiniBand

Fortinet

Networking fundamentals

Linux scripting

Troubleshooting

Tools

FortiGate

FortiManager

FortiAnalyzer

Bash

Python

Mellanox InfiniBand

Job description

Mirantis seeks a Senior HPC Networking Engineer to design, deploy, and manage high-performance networks for AI and data-intensive workloads. The role focuses on InfiniBand fabrics, Fortinet security, and seamless integration with Kubernetes-based infrastructure.

You will diagnose and optimize hybrid network environments, collaborating with compute and storage teams to ensure scalable, reliable HPC operations and secure data flows across on-prem and cloud-like environments.