2Nd / 3Rd Line IT Network Support Engineer

Smartsearch Recruitment; Maesycwmmer; Hybrid; GBP 40,000; Full time

Job summary

A Managed Service Provider in the UK is seeking a 2nd/3rd Line IT Network Support Engineer. This role involves supporting LAN/WAN environments, configuring network infrastructure, and requires SC Clearance. You will work in a hybrid model, with 2 days from home and 3 in the office. Ideal for candidates experienced in managed networks with a strong focus on future growth and excellent benefits package.

Benefits

Excellent benefits package

Qualifications

• Proven experience in supporting complex networks and troubleshooting issues.
• Competent in configuring and managing network devices like switches and routers.
• Strong foundation in network security and firewall configurations.

Responsibilities

• Support a diverse customer base with IT network solutions.
• Manage on-call responsibilities as part of a rota.
• Ensure compliance with ITIL management processes.

Skills

Supporting and troubleshooting complex multi-site LAN/WAN environments

Advanced configuration of enterprise switches and routers

In-depth knowledge of OSPF, BGP, EIGRP

Understanding of network security concepts

Experience with VLAN design and inter-VLAN routing

Hands-on experience with wireless networking

Network monitoring and troubleshooting tools

Experience with network automation and scripting

Familiarity with cloud networking

Ability to implement high-availability solutions

Proficient with DNS, DHCP, NAT

Ability to maintain detailed network documentation

Comfortable in ITIL-based environments

Education

Cisco CCNA/CCNP or equivalent certification

CompTIA Network+

Microsoft Certified: Azure Administrator Associate

AWS Certified Solutions Architect – Associate

ITIL Foundation

Tools

Wireshark

SolarWinds

PRTG

Job description

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.

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