Network Engineer

Network Engineer £550 per day (Outside IR35) Initial 6 Month Contract London (Hybrid – 2 to 3 days per week) Overview We're looking for an experienced Network Engineer / Network Designer to join a major enterprise transformation programme delivering large-scale network and security projects across a complex hybrid infrastructure. This is a project-focused role with no BAU or operational support responsibilities. You'll play a key role in designing, implementing and documenting network changes across cloud and on-premise environments, working with a broad range of modern networking, security and automation technologies. This is an excellent opportunity to join a high-profile programme focused on network modernisation, cloud adoption and secure enterprise connectivity. Role & Responsibilities • Produce High and Low Level Designs (HLDs/LLDs), network diagrams, and technical documentation. • Design and implement enterprise network solutions across hybrid cloud and on-premises environments. • Configure and deliver changes across Cisco, Fortinet, Palo Alto, Juniper, and Azure networking technologies. • Implement routing, segmentation, cloud connectivity, IPSec VPNs, Azure networking (VNets, NSGs, Azure Firewall, VPN Gateway, ExpressRoute), and Zero Trust solutions. • Contribute to Cisco ACI, Juniper Mist, and F5 LTM deployments. • Develop implementation plans, migration runbooks, testing documentation, and technical handover artefacts. • Support enterprise network transformation, cloud migration, and infrastructure modernisation programmes. • Automate network configuration and deployment using Python, Terraform, GitHub, or similar tools. • Maintain accurate technical documentation to enterprise standards. Skills & Experience • Proven experience designing and delivering enterprise network solutions. • Strong knowledge of routing and switching (BGP, OSPF, VLANs, NAT, QoS, IPSec VPN). • Hands-on experience with Cisco ACI, Juniper Mist, and enterprise firewalls (Fortinet, Palo Alto, and/or Juniper SRX). • Strong Azure networking experience, including hybrid connectivity and cloud security. • Experience implementing Zero Trust solutions using Zscaler ZIA and/or ZPA. • Experience with F5 LTM is desirable. • Automation experience with Python, Terraform, GitHub, and/or Ansible. • Experience delivering network transformation and migration projects. • Excellent technical documentation, communication, and stakeholder management skills.