2nd/3rd Line IT Network Support Engineer | Salary: £40k excellent benefits package | Hybrid: 2 days from home / 3 days from the Caerphilly. There is a requirement to work on-call as part of a rota (paid). | SC Clearance required We have an exciting opportunity for a 2nd/3rd Line IT Network Support Engineer to join a leading and growing Managed Service Provider and Systems Integrator. This role will support a diverse customer base in both the public and private sectors. We are keen to hear from 2nd/3rd Line IT Network Support Engineers with experience in a Managed Service Provider environment. The role offers excellent scope and future growth opportunities for the right candidate. Network Support Engineer Requirements: Significant experience supporting and troubleshooting complex multi-site LAN/WAN environments Advanced configuration and management of enterprise switches, routers, and firewalls (e.g., Cisco, Fortinet, Juniper) In-depth knowledge of routing protocols (OSPF, BGP, EIGRP) and dynamic routing configuration Strong understanding of network security concepts, including firewall rule sets, VPNs (IPSec, SSL), and intrusion prevention systems Experience with VLAN design, trunking, inter-VLAN routing, and network segmentation Hands-on experience with wireless networking (802.1x authentication, enterprise Wi-Fi deployment, troubleshooting RF issues) Proficient in network monitoring, analysis, and troubleshooting using tools such as Wireshark, SolarWinds, PRTG, or similar Experience with network automation and scripting (e.g., Python, Ansible, or PowerShell) for configuration management and monitoring Familiarity with cloud networking (Azure/AWS VPCs, VPN gateways, ExpressRoute/Direct Connect) Proven ability to implement and support high-availability solutions (redundant links, HSRP/VRRP, load balancing) Experience with DNS, DHCP, NAT, and network address planning Ability to produce and maintain detailed network documentation, diagrams, and change records Comfortable working in an ITIL-based service management environment, including incident, problem, and change management processes Desirable: Experience with SD-WAN technologies and deployment Knowledge of VoIP systems and network QoS Cisco CCNA/CCNP or equivalent certification CompTIA Network Microsoft Certified: Azure Administrator Associate AWS Certified Solutions Architect – Associate ITIL Foundation If this sounds like the role that you are looking for, then please apply attaching your CV. Smartsearch take your privacy seriously and will only use your personal information to administer your application. To effectively process your application, we may share your details with the company for whom we are collecting job applications and Smartsearch or the company may contact you by email, telephone or SMS. A copy of our privacy policy will be emailed to you upon receipt of your application