Network Security Engineer// Cardiff/ Hybrid // £50,000 plus benefits
Network Security Engineer – Opportunity with a High‑Growth AI Organisation
An innovative, fast‑growing AI company operating in highly regulated industries is looking for an experienced Network Security Engineer to join its Infrastructure team. This is a lead technical position with ownership of network service design and day‑to‑day security operations.
Location: Cardiff , South Wales (hybrid – 1 day per week on site)
Key Responsibilities
- Lead the design, support, and maintenance of secure network infrastructure
- Act as the SME and escalation point for networking across the organisation
- Ensure network availability, resilience, and compliance with internal standards
- Manage firewall technologies, switching, HA setups, and secure connectivity
- Plan and deliver upgrades, changes, and improvements with strong change control
- Support incident resolution within agreed SLAs
- Work closely with the wider business to ensure stable, secure operations
Core Technical Skills (Essential)
- Cisco ASA, Cisco Nexus/IOS
- Fortigate
- pfSense
- High Availability (HA)
- VMware networking
- Secure wireless
- PKI, iSCSI
- VPN, VLAN, RADIUS, DHCP, DNS, NAT
Desirable: Azure/AWS networking, HP Blade, Vyatta, Nutanix, SASE, HAProxy, Linux, PRTG, Unifi, 802.1x
Ideal Profile
- Proactive, solutions‑focused problem solver
- Comfortable taking ownership and driving technical decisions
- Adaptable and able to thrive in a fast‑moving environment
Why Join?
You’ll play a pivotal role in securing and shaping the network foundations behind mission‑critical AI solutions trusted by major enterprises and organisations.
Network Security Engineer// Cardiff/ Hybrid // £50,000 plus benefits