Senior IT Network & Infrastructure Engineer

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