Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intensive applications. By combining open source innovation with deep expertise in Kubernetes orchestration, Mirantis empowers platform engineering teams to deliver composable, production-ready developer platforms across any environment—on-premises, in the cloud, at the edge, or in sovereign data centers. As enterprises navigate the growing complexity of AI-driven workloads, Mirantis delivers the automation, GPU orchestration, and policy-driven control needed to manage infrastructure with confidence and agility.

Committed to open standards and freedom from lock-in, Mirantis ensures that customers retain full control of their infrastructure strategy. Mirantis serves many of the world’s leading enterprises, including Adobe, DocuSign, Liberty Mutual, PayPal, Reliance Jio, Societe Generale, Splunk, and Volkswagen. We are seeking a highly skilled Senior HPC Networking Engineer to design, deploy, manage, and troubleshoot high-performance networking environments.

The idóneo 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. 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. Develop and maintain documentation for network architecture, configurations, and operational procedures.

Lead or contribute to network upgrades, migrations, and new deployments. 5+ years of experience in network engineering, with a focus on HPC or data center environments. ~ 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). ~ Knowledge of RDMA, MPI, and low‑latency networking concepts.

Certifications such as FCSS/FCNSP (Fortinet), CCNP/CCIE, or equivalent. Ansible, Terraform). Work with the latest NVIDIA GPU technologies, Kubernetes platforms, and high‑performance networking environments. Work alongside highly skilled engineers solving complex infrastructure and platform challenges at scale. We are a Leader for Container Management in G2 (#2 after AWS)! We are a Leader for Container Management in G2 (#2 after AWS)! #

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