Principal HPC Network Engineer (remote in the EU)

Mirantis, Inc.; España; Remote; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Advanced AI infrastructure

NVIDIA GPUs

Kubernetes platforms

Professional growth

Job summary

Mirantis, Inc. is seeking a Senior HPC Networking Engineer to design, deploy, manage, and troubleshoot high-performance networks for HPC infrastructures. The role focuses on InfiniBand fabrics, network performance, and Fortinet security architectures.

You will work with compute, storage, and platform teams to optimize HPC workloads, lead upgrades, and contribute to documentation and on-call support. Deep expertise in InfiniBand, TCP/IP, routing, and Linux scripting is required.

Qualifications

• 5+ years of experience in network engineering, HPC or data center environments.
• Strong hands-on experience with InfiniBand technologies (e.g., Mellanox/NVIDIA).
• Solid understanding of TCP/IP, routing protocols (BGP, OSPF), VLANs, QoS.

Responsibilities

• Design, deploy, and maintain high-performance HPC networks with InfiniBand focus.
• Troubleshoot InfiniBand and Ethernet issues for minimal downtime.
• Manage InfiniBand components: switches, HCAs, subnet managers, fabric configs.
• Performance tuning, monitoring, and capacity planning for HPC networks.
• Implement and maintain security using Fortinet solutions (FortiGate, FortiManager, FortiAnalyzer).
• Diagnose routing, switching, latency, throughput in hybrid networks.
• Collaborate with compute/storage/platform teams for HPC workloads.
• Develop and maintain network architecture docs and procedures.
• Participate in on-call rotations and escalation support.
• Lead or contribute to network upgrades and new deployments.

Skills

InfiniBand

Fortinet

Networking fundamentals

Linux scripting

Performance analysis

Troubleshooting

Tools

Mellanox/NVIDIA InfiniBand

FortiGate/FortiManager/FortiAnalyzer

Ansible

Terraform

Job description

We are seeking a highly skilled Senior HPC Networking Engineer to design, deploy, manage, and troubleshoot high-performance networking environments. The ideal candidate will have deep expertise in InfiniBand technologies, strong general networking knowledge, and hands-on experience with Fortinet solutions. You will play a critical role in ensuring the performance, reliability, and scalability of HPC infrastructure.

Key Responsibilities:

• 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.

Required:

• 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.

Preferred:

• 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 (e.g., Ansible, Terraform).

Soft Skills:

• Strong communication and collaboration skills.
• Ability to work independently and handle complex technical challenges.
• Detail-oriented with a proactive approach to problem-solving.

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 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.
• We are a Leader for Container Management in G2 (#2 after AWS)!
• We are a Leader for Container Management in G2 (#2 after AWS)!