Job Description

We are seeking a highly skilled Senior HPC Networking Engineer to design, deploy, manage, and troubleshoot high-performance networking environments. The adecuado 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.

📌 Principal HPC Network Engineer (remote in the EU) (Barcelona)
🏢 Mirantis
📍 Barcelona