Network Engineer

• Opportunity to work within a large-scale enterprise infrastructure environment supporting critical public services.
• Some out of hours work may be required to support planned changes, maintenance activities, and major incidents., We are seeking an experienced Senior Network Engineer to provide hands-on support, administration, troubleshooting, and implementation across our enterprise network environment. This is an engineering focused role requiring an individual who can quickly become productive within an operational environment, diagnose issues, implement changes, and support business-critical infrastructure.

Key Requirements

• Strong hands-on experience supporting enterprise LAN/WAN and Data Centre core networks within medium to large enterprise environments.
• Proven expertise in routing, switching, TCP/IP, VLANs, DHCP, DNS, NTP, VPNs, OSPF, BGP, QOS, network monitoring, diagnostics, performance optimisation, and troubleshooting.
• Practical experience administering and supporting data centre networking, including high availability architectures, resilient network design, segmentation, security zoning, virtualisation networking, redundant paths, failover, disaster recovery, business continuity, and load balancing.

Responsibilities

• Provide BAU support, maintenance and proactive monitoring of network infrastructure
• Troubleshoot and resolve incidents, service degradations, and outages, including root cause analysis and implementation of permanent fixes.
• Implement approved network changes, infrastructure upgrades, firewall administration, and security controls.
• Collaborate with infrastructure, server, and security teams, supporting the delivery of projects requiring networking expertise.

• Hands on with strong technical, troubleshooting, and problem-solving skills.
• Experienced in operational support environments and comfortable working across both BAU and project activities.
• Able to work independently with minimal supervision while maintaining strong communication and documentation standards.
• May have experience firewall build and administration (FortiGate preferred, but Cisco Firepower/ ASA a plus) including security policy management, VPNs, remote connectivity, monitoring, troubleshooting, and day-to-day support. Not essential but is desirable.

Desirable Certifications

• Fortinet FCP / NSE or equivalent
• CCNP Enterprise
• ITIL Foundation

Adecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer.