Senior IT Network & Infrastructure Engineer

Salary: £45,000 - 48,000 per year

Requirements

• We want proven experience designing and managing large-scale enterprise networks.
• We want a strong understanding of routing and core protocols, including TCP/IP, DNS, DHCP, and NFS.
• We want solid experience in network security, including firewalls, VPNs, and encryption standards.
• We want hands-on experience with virtualisation platforms such as VMware vSphere.
• We see familiarity with containerisation technologies as an advantage.
• We want good knowledge of Windows Server environments.
• We prefer certifications such as CCNP, CCIE, JNCIP, or equivalent.
• We value experience working within structured IT environments, with ITIL knowledge beneficial.
• We want a proactive, solutions-focused approach and strong communication skills.

Responsibilities

• We design, implement, and maintain enterprise-level network architecture across LAN, WAN, WLAN, and VPN environments.
• We ensure high availability, performance, and scalability of network services.
• We troubleshoot and resolve complex network issues across multiple environments.
• We configure and manage routers, switches, firewalls, and load balancers.
• We lead network upgrades, migrations, and infrastructure improvement projects.
• We implement secure remote access solutions, including VPN, IPsec, SSL/TLS, and SSH.
• We enforce network security best practices, including firewall rules, IDS/IPS, encryption, and PKI.
• We monitor network performance, capacity, and security using appropriate tools.
• We support disaster recovery and business continuity planning.
• We manage patching, updates, and configuration backups.
• We produce clear documentation for network configurations and disaster recovery procedures.
• We provide technical guidance and mentoring to junior engineers.
• We participate in on-call support and incident response when required.

Technologies

• Firewall
• Support
• ITIL
• LAN
• Network
• NFS
• Security
• TCP/IP
• VPN
• VMware
• WLAN
• Windows
• DevOps

More

We are supporting a forward-thinking organisation in Pembrokeshire as they look to hire a Senior IT Network & Infrastructure Engineer to take ownership of their enterprise network environment. This is a hands-on, senior technical role where we would design, build, and optimise a modern, secure, high-availability network across a large and diverse infrastructure. We offer the opportunity to join a growing team at a state-of-the-art facility, working within a modern, technology-driven organisation. This is an on-site role based at our well-equipped facility in Pembrokeshire.

last updated 23 week of 2026