Senior Network Engineer Up to £65k DOE London, UK iO Associates are aligned with a UK-based IT consultancy specialising in network infrastructure, cloud, and connectivity solutions. The ideal candidate will have strong experience managing global network environments, with a proactive approach to optimisation, a solid understanding of Infrastructure-as-Code, and the ability to collaborate across teams to support and deliver complex enterprise projects. Key Responsibilities: 3 weeks project work, 1 week Tier 3 support Troubleshoot multi-vendor network issues (Cisco, Arista) Resolve major incidents and outages Investigate hardware/software issues with vendors Manage WAN and third-party connectivity issues Monitor data centre network performance Key Skills: CCNP certified Cisco & Arista experience Strong routing & switching (BGP) Network automation (Python preferred) Firewall experience (Palo Alto/Fortinet) Infrastructure as Code (Ansible/Terraform/AWX) Mentoring & knowledge sharing This is an excellent opportunity to work on high-profile defence, government, and related projects, with a team that encourages and facilitates personal growth. *PS: The Company can't provide any sponsorship, so only candidates with the existing right to work in the UK will be considered for this role.