• 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.

• Support the deployment, configuration, and maintenance of InfiniBand and Ethernet network infrastructure. • Assist in troubleshooting network issues, including connectivity, latency, and performance degradation. • Monitor network health and performance using standard tools and assist in identifying bottlenecks. • Work with InfiniBand technologies (switches, HCAs, subnet managers) under guidance from senior engineers. • Support management and troubleshooting of Fortinet solutions (FortiGate, VPNs, firewall rules). • Assist in implementing network configurations, routing, and segmentation. • Collaborate with compute and storage teams to support HPC and AI workloads. • Participate in incident response and operational support activities. • Contribute to documentation of network configurations and procedures. • Learn and adopt automation tools and practices (e.g., Ansible, scripting).

• Manage and maintain the Monitoring Systems • Full fault troubleshooting, problem isolation, and corrective action implementation or escalation to network engineering for assistance • Liaising, and own discussions with, 3rd party suppliers to troubleshoot problems, perform upgrades, resolve service impacts, manage network changes, and escalate as required • Provisioning and configuring core network devices and tools, such as IP assignment, core network configuration, DNS setup, monitoring software for core equipment and software, NNI ports and services, implementing MOPs for controlled core and edge network changes, etc. • Network equipment build, installation, and configurations • Performing and maintain hardware, serial numbers, security, and configuration audits • Writing custom monitoring plugins and configuring bespoke graphing. • Maintenance of WIKI and technical documentation (for NOC) of processes and procedures used throughout normal operations • Development of knowledge and skills in network and system administration • Tier 3 escalation point for all core network datacenter services and infrastructure, access network, and AireSpring services • Participate in a 24x7 call-out rotation if required