About the role
Job Description
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:
* 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.
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