Mirantis

Role Description 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 - 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 Qualifications - 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. Benefits - Opportunity to work on cutting-edge HPC infrastructure. - Collaborative and innovative work environment. - Competitive salary and benefits package. - 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.

• Lead the investigation and resolution of complex infrastructure, networking, and platform-related incidents • Act as a senior escalation point for operational teams during critical service-impacting events • Support large-scale NVIDIA GPU infrastructure and high-performance networking environments • Troubleshoot complex Linux, Kubernetes, networking, storage, and hardware-related issues • Analyze platform performance, capacity, stability, and reliability trends to proactively identify risks • Lead root cause analysis activities and drive long-term corrective actions • Collaborate with engineering teams, hardware vendors, and datacenter personnel to resolve complex technical challenges • Participate in major incident management and service restoration activities • Provide technical leadership for Kubernetes platform operations and supporting infrastructure services • Drive improvements in platform reliability, observability, monitoring, and operational processes • Identify opportunities to automate repetitive operational activities and improve operational efficiency • Contribute to operational readiness reviews, infrastructure changes, upgrades, and service introductions • Support the adoption and operation of AI-powered infrastructure services and operational capabilities through k0rdent AI • Mentor and support AI Infrastructure & Platform Operations Engineers.

• Monitor, operate, and support production AI infrastructure platforms • Investigate and resolve infrastructure, networking, hardware, and platform-related incidents • Support NVIDIA GPU infrastructure and associated platform services • Monitor and troubleshoot Kubernetes-based environments • Investigate performance, availability, and reliability issues across infrastructure and platform components • Collaborate with engineering teams, hardware vendors, Data Center personnel, and service delivery teams to resolve technical issues • Participate in incident response, root cause analysis, and operational improvement activities • Contribute to improvements in monitoring, observability, automation, and operational processes • Maintain operational documentation, runbooks, and knowledge articles

• Testing Strategy & Leadership: Contribute to driving the overall QA strategy for Mirantis Secure Registry, Kubernetes and cloud-native environments, aligning quality goals with business objectives and release deadlines. • Evaluate and champion best-in-class testing practices and frameworks for distributed systems. • Lead risk analysis and test planning for large-scale, multi-cloud registry, infrastructure and container orchestration. • Architect test frameworks and infrastructure for validating microservices and infrastructure components in multi-cluster and hybrid-cloud environments. • Oversee the design of complex test scenarios simulating production-like workloads, resource scaling, failure injection, and recovery across distributed clusters. • Spearhead the development of scalable and maintainable test automation integrated with CI/CD (Jenkins, GitHub Actions, etc.). • Leverage Kubernetes APIs, Helm, and service mesh tools to build comprehensive automation coverage. • Promote test infrastructure-as-code and drive IaC forward on the team making sure the infrastructure code is repeatable, extensible and reliable. • Mentor QA engineers and developers in advanced testing techniques such as risk-based testing, chaos engineering, performance and load testing. • Serve as the QA authority in design reviews, production readiness assessments, and incident retrospectives (escaped defects). • Collaborate with devops engineers to refine monitoring, alerting, and debugging strategies for testing automation being run in CI/CD. • Establish quality gates, release readiness metrics, and data driven feedback loops to ensure released software is production quality. • Drive initiatives to integrate performance, security, and chaos testing into the development lifecycle. • Advocate for a culture of quality across teams and influence architecture decisions with testing in mind.

• Testing Strategy & Leadership: Contribute to driving the overall QA strategy for Mirantis Secure Registry, Kubernetes and cloud-native environments, aligning quality goals with business objectives and release deadlines. • Evaluate and champion best-in-class testing practices and frameworks for distributed systems. • Lead risk analysis and test planning for large-scale, multi-cloud registry, infrastructure and container orchestration. • Architecting Test Systems: Architect test frameworks and infrastructure for validating microservices and infrastructure components in multi-cluster and hybrid-cloud environments. • Oversee the design of complex test scenarios simulating production-like workloads, resource scaling, failure injection, and recovery across distributed clusters. • Automation & Scalability: Spearhead the development of scalable and maintainable test automation integrated with CI/CD (Jenkins, GitHub Actions, etc.). • Leverage Kubernetes APIs, Helm, and service mesh tools to build comprehensive automation coverage, including system health, failover behavior, and network resilience. • Promote test infrastructure-as-code and drive IaC forward on the team making sure the infrastructure code is repeatable, extensible and reliable. • Mentorship & Technical Influence: Mentor QA engineers and developers in advanced testing techniques such as: risk-based testing, chaos engineering, performance and load testing etc. • Serve as the QA authority in design reviews, production readiness assessments, and incident retrospectives (escaped defects). • Collaborate with devops engineers to refine monitoring, alerting, and debugging strategies for testing automation being run in CI/CD. • Quality Advocacy & Continuous Improvement: Establish quality gates, release readiness metrics, and data driven feedback loops to ensure released software is production quality. • Drive initiatives to integrate performance, security, and chaos testing into the development lifecycle. • Advocate for a culture of quality across teams and influence architecture decisions with testing in mind.

• Own the vision, roadmap, and priorities for k0rdent AI networking, defining how customers design, automate, and operate every aspect of their network, including underlay fabric management, tenant connectivity, RDMA, DNS/IPAM, and more • Translate requirements from NeoClouds, GPU clouds, telcos, sovereign clouds, and enterprise platform teams into clear product direction • Partner with engineering and architecture to define requirements, evaluate trade-offs, and ship secure, scalable, reliable networking capabilities • Manage the networking backlog, using feedback from production deployments and design partners to refine roadmap priorities and positioning • Define positioning, packaging, and competitive differentiation for k0rdent AI networking • Create field-facing assets, including technical briefs, battlecards, and reference architectures; support strategic accounts as the networking product lead • Represent Mirantis at events, analyst briefings, and customer advisory boards; engage silicon, fabric, and ecosystem partners on reference architecture alignment

• 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.

• 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.

• 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.

• Lead the investigation and resolution of complex infrastructure, networking, and platform-related incidents. • Act as a senior escalation point for operational teams during critical service-impacting events. • Support large-scale NVIDIA GPU infrastructure and high-performance networking environments. • Troubleshoot complex Linux, Kubernetes, networking, storage, and hardware-related issues. • Analyze platform performance, capacity, stability, and reliability trends to proactively identify risks. • Lead root cause analysis activities and drive long-term corrective actions. • Collaborate with engineering teams, hardware vendors, and datacenter personnel to resolve complex technical challenges. • Provide technical leadership for Kubernetes platform operations and supporting infrastructure services. • Drive improvements in platform reliability, observability, monitoring, and operational processes. • Identify opportunities to automate repetitive operational activities and improve operational efficiency. • Mentor and support AI Infrastructure & Platform Operations Engineers.