Principal HPC Network Engineer (remote in the US)

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.

Qualifications
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.

Additional Information
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)!

Company Description
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. https://www.mirantis.com/