About this role
Salary: £55,000 - 95,000 per year
Requirements: Strong routing and switching knowledge, including OSPF, BGP, EIGRP, summarisation, redistribution, route maps and path selection.Experience configuring VLAN trunking, EtherChannel and Layer 2 redundancy.Experience with enterprise LAN, WAN and data centre architecture.Knowledge of data centre technologies including Cisco Nexus, Catalyst, vPC, VXLAN/EVPN, ACI and fabric architectures.Experience in network migration and transformation projects.Ability to analyse, review and understand network topologies.Experience designing rack layouts and structured cabling for medium data centres.Ability to coordinate multiple projects, change management and governance, working independently and as part of a team.Strong TCP/IP, subnetting, VLAN, VRF, ACL, NAT, DNS and DHCP knowledge.Advanced troubleshooting skills using packet captures, logs, flow data and monitoring tools.Experience with resilient network design including HSRP/VRRP, port-channeling and redundant uplinks.Firewall, security zoning, rulebase and traffic-flow validation experience.Experience producing LLDs, implementation plans, test plans, handovers, as-built documentation and network diagrams.Good customer-facing skills with the ability to keep customers informed and understand their requirements.Desirable: automation or scripting experience in Python.Desirable: exposure to Ansible, Terraform, YAML, NetBox, Git or CI/CD pipelines. Responsibilities: We plan, manage and deploy technology changes to support data centre services.We deploy LAN infrastructure to support end-user service requirements.We manage patching schedules for facilities to cable network equipment.We create diagrams for Network Operations.We manage inventory.We create detailed implementation plans for RFCs.We document pre-checks and post-checks for change verification.We document back-out plans, including back-out points and points of no return.We plan changes to support the stability and uptime of essential services.We identify opportunities to complete changes with zero downtime to hosted services.We plan and implement changes using a cost-effective resource strategy.We identify, understand and document change risks and mitigation tactics.We document the impact of planned technology changes and expected verification outputs.We document the network estate to support operations and change planning.We peer review and validate technical deployment plans.We provide constructive feedback to peers to maintain high standards of detail and quality. Technologies: AnsibleBusiness IntelligenceCI/CDCloudCiscoFabricFirewallFlowGitSupportLANMarketingNATNetworkNexusPythonSecurityTCP/IPTerraformLESS More:
We are CACI, a London-based organisation founded in 1975, with operations across the UK, Europe and India and more than 1,600 full-time employees. We help organisations make strategic, data-driven decisions through solutions spanning business intelligence, customer marketing, cloud infrastructure, cybersecurity, critical national infrastructure and data management. Our Network Services team is a rapidly expanding specialist IT and networks consultancy, working with major clients across Global Media, Banking, Government, Telecoms and Utilities. This Level 2 Network Engineer role sits within our UK Deployment Team, supporting the planning, delivery and deployment of customer network infrastructure and network and security projects. We offer a hybrid working approach and foster an inclusive culture where our people can be authentic and succeed in their careers.
last updated 33 week of 2026