Senior IT Network & Infrastructure Engineer

Ref No. 25393
Haverfordwest
Posted 26 May 2026

Overview

Salary: Up to £48,000 per annum

Employment: Permanent

Job description

We’re 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 you’ll design, build, and optimise a modern, secure, high‑availability network across a large and diverse infrastructure.

If you’re an experienced network professional who enjoys solving complex problems, leading improvements, and working with a wide range of technologies, this is an excellent opportunity to join a growing team at a state‑of‑the‑art facility.

As the Senior IT Network & Infrastructure Engineer, you will:

  • Design, implement, and maintain enterprise‑level network architecture (LAN, WAN, WLAN, VPN)
  • Ensure high availability, performance, and scalability of network services
  • Troubleshoot and resolve complex network issues across multiple environments
  • Configure and manage routers, switches, firewalls, and load balancers
  • Lead network upgrades, migrations, and infrastructure improvement projects
  • Implement secure remote access solutions (VPN, IPsec, SSL/TLS, SSH)
  • Enforce network security best practices, including firewall rules, IDS/IPS, encryption, and PKI
  • Monitor network performance, capacity, and security using appropriate tools
  • Support disaster recovery and business continuity planning
  • Manage patching, updates, and configuration backups
  • Produce clear documentation for network configurations and DR procedures
  • Provide technical guidance and mentoring to junior engineers
  • Participate in on‑call support and incident response when required

We’re looking for someone who brings:

  • Proven experience designing and managing large‑scale enterprise networks
  • Strong understanding of routing and core protocols (TCP/IP, DNS, DHCP, NFS)
  • Solid background in network security (firewalls, VPNs, encryption standards)
  • Hands‑on experience with virtualisation platforms such as VMware vSphere
  • Familiarity with containerisation technologies (advantageous)
  • Good knowledge of Windows Server environments
  • Certifications such as CCNP, CCIE, JNCIP or equivalent (highly desirable)
  • Experience working within structured IT environments (ITIL beneficial)
  • A proactive, solutions‑focused approach and strong communication skills

This role is ideal for a dedicated professional who wants to apply their expertise within a modern, technology‑driven organisation.  Please note, this is an on‑site role based at a modern, well‑equipped facility in Pembrokeshire.

Your consultant

Donah Thomas

Talent and Delivery Director

Get in touch:

donah@intapeople.com