Principal HPC Network Engineer (remote in the US)
Role Overview:
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:
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Design, deploy, and maintain high-performance network infrastructures for HPC environments, with a strong focus on InfiniBand fabrics.
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Troubleshoot complex network issues across InfiniBand and Ethernet environments, ensuring minimal downtime and optimal performance.
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Manage and optimize InfiniBand components, including switches, HCAs, subnet managers, and fabric configurations.
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Perform performance tuning, monitoring, and capacity planning for HPC networking systems.
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Implement and maintain network security using Fortinet solutions (FortiGate, FortiManager, FortiAnalyzer).
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Diagnose and resolve issues related to routing, switching, latency, and throughput across hybrid network environments.
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Collaborate with compute, storage, and platform teams to support HPC workloads and cluster operations.
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Develop and maintain documentation for network architecture, configurations, and operational procedures.
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Participate in on-call rotations and provide escalation support for critical incidents.
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Lead or contribute to network upgrades, migrations, and new deployments.
Required:
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5+ years of experience in network engineering, with a focus on HPC or data center environments.
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Strong hands-on experience with InfiniBand technologies (e.g., Mellanox/NVIDIA).
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Solid understanding of networking fundamentals: TCP/IP, routing protocols (BGP, OSPF), VLANs, QoS, and network design.
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Proven experience deploying and troubleshooting Fortinet solutions (FortiGate, FortiManager, VPNs, firewall policies).
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Experience with network performance analysis and troubleshooting tools.
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Familiarity with Linux systems and scripting for automation (e.g., Bash, Python).
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Strong analytical and problem-solving skills.
Preferred:
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Experience with large-scale HPC clusters or AI/ML infrastructure.
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Knowledge of RDMA, MPI, and low-latency networking concepts.
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Certifications such as FCSS/FCNSP (Fortinet), CCNP/CCIE, or equivalent.
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Experience with automation and Infrastructure as Code tools (e.g., Ansible, Terraform).
Soft Skills:
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Strong communication and collaboration skills.
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Ability to work independently and handle complex technical challenges.
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Detail-oriented with a proactive approach to problem-solving.
What does Mirantis offer you?
- Work with an established Silicon Valley leader in the cloud infrastructure industry;
- Work with exceptionally passionate, talented and engaging colleagues, helping Fortune 500 and Global 2000 customers implement next-generation cloud technologies;
- Be a part of cutting-edge, open-source innovation;
- Thrive in the high-energy environment of a young company where openness, collaboration, risk-taking, and continuous growth are valued;
- Professional development and training;
- Attend conferences and working groups;
- Company outings, happy hours, hackathons, and tech talks;
- Receive a competitive compensation package with a strong benefits plan.
We are a Leader for Container Management in G2 (#2 after AWS)!
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 cent