City of London, London, United Kingdom Hybrid / WFH Options
83zero Limited
summaries Participate in DR/failover testing and on-call support for critical issues Support new customer projects through configuration and technical input Our Technical Landscape Includes: Switching & Wireless: Cisco, Meraki, Aruba, HP, Dell, Juniper Security: Palo Alto, Fortinet, Cisco ASA, Prisma SD-WAN: Meraki, Viptela, Citrix, Nuage, Fortinet Infrastructure: Cisco NAC ISE, CiscoNexus … CCNP or JNCIP-ENT level Solid experience troubleshooting Layer 2/3 protocols, OSPF and BGP Hands-on experience with at least one enterprise firewall: Palo Alto , Fortigate , or Cisco ASA Proven ability to perform root cause analysis and resolve complex network issues Experience in a Managed Services Provider (MSP) environment Familiarity with cloud networking and automation tools Ready More ❯
scale AI and HPC environments. Key Responsibilities: •Design, deploy, and manage VXLAN EVPN-based fabric networks supporting AI and high-performance computing workloads. •Build scalable spine-leaf architectures using CiscoNexus 9000 or Arista switches, ensuring efficient Layer 2/Layer 3 segmentation and workload mobility. •Optimize network performance for RoCEv2, GPUDirect, and low-latency traffic flows, ensuring … and capacity planning for evolving AI workloads and future-proof infrastructure designs. Required Skills & Expertise: •Proven experience designing and operating VXLAN EVPN-based data center networks. •Strong knowledge of Cisco ACI, Nexus 9000, or Arista EOS platforms. •Expertise in data center routing and switching, including BGP, OSPF, IS-IS, multicast, and fabric path. •Deep understanding of AI-specific … Python, Ansible, and Terraform. •Familiarity with GPU-accelerated workloads and distributed systems in AI/ML and HPC environments. Preferred Qualifications & Certifications: •CCNP or CCIE Data Center (highly preferred) •Cisco Certified Specialist – Enterprise Core or Data Center Core •Additional certifications in NVIDIA Networking (Cumulus/Spectrum) or Arista ACE are a plus •Experience with hybrid and multi-cloud networking More ❯
london (city of london), south east england, united kingdom
HCLTech
scale AI and HPC environments. Key Responsibilities: •Design, deploy, and manage VXLAN EVPN-based fabric networks supporting AI and high-performance computing workloads. •Build scalable spine-leaf architectures using CiscoNexus 9000 or Arista switches, ensuring efficient Layer 2/Layer 3 segmentation and workload mobility. •Optimize network performance for RoCEv2, GPUDirect, and low-latency traffic flows, ensuring … and capacity planning for evolving AI workloads and future-proof infrastructure designs. Required Skills & Expertise: •Proven experience designing and operating VXLAN EVPN-based data center networks. •Strong knowledge of Cisco ACI, Nexus 9000, or Arista EOS platforms. •Expertise in data center routing and switching, including BGP, OSPF, IS-IS, multicast, and fabric path. •Deep understanding of AI-specific … Python, Ansible, and Terraform. •Familiarity with GPU-accelerated workloads and distributed systems in AI/ML and HPC environments. Preferred Qualifications & Certifications: •CCNP or CCIE Data Center (highly preferred) •Cisco Certified Specialist – Enterprise Core or Data Center Core •Additional certifications in NVIDIA Networking (Cumulus/Spectrum) or Arista ACE are a plus •Experience with hybrid and multi-cloud networking More ❯
City of London, London, United Kingdom Hybrid / WFH Options
VIQU IT Recruitment
AV/UC solutions (ideally Microsoft Teams Rooms). Experience supporting AV rollouts across multiple locations. Familiarity with global monitoring tools (Symphony or similar). Hands-on experience with Cisco networking (routing & switching), firewalls, and WAN technologies. Experience with network monitoring tools like SolarWinds NPM/NTA and Cisco Prime. Knowledge of Fortinet, Aruba, HPE, Palo Alto (Panorama … and CiscoNexus . Law firm industry experience would be beneficial Any experience working with SD-Wan products would be useful Potential Out of hour work on a rota basis Potential global travel Key Responsibilities: Setup VLANs to optimise LAN performance and stability for AV solutions. Create a scalable network design framework that can be implemented globally across More ❯