Network Engineer - £500/day Inside IR35 - 6 months - London (Hybrid) - SCC Flex ContractWe are seeking an experienced Network Engineer to support a SD-WAN/SecureConnect migration programme. This Network Engineer role is ideal for someone with strong Aruba and Cisco migration experience.Your responsibilities as the Network Engineer: Assess existing site network infrastructure and Cisco configurations.Identify site-specific variables including addressing, VLAN mappings and WAN details.Configure Aruba Gateway policies and update SD-WAN templates.Ensure alignment with the SecureConnect reference architecture.Produce migration runbooks and documentation.Upload, stage and validate configurations in Aruba Central.Support pilot migrations and site cutovers, including troubleshooting routing, VPN and connectivity issues.Perform post-migration testing and provide knowledge transfer to engineering teams. Provide documentation and knowledge transfer to engineering teams. As a successful Network Engineer, you will have: Strong hands-on experience with Aruba networking platforms and Aruba Central.Solid knowledge of SD-WAN architecture and Cisco-to-Aruba migration projects.Expertise in enterprise routing, switching, VPN technologies and Zero Trust concepts.Proven experience delivering multi-site migrations within enterprise environments.Experience working in large transformation programmes and with Aruba SD-WAN or SD-Branch.Ability to work collaboratively with architects, engineers and proj