Salary: £48,000 - 48,000 per year Requirements: We are looking for a highly capable infrastructure professional with strong enterprise networking expertise and a proactive approach to problem-solving. We require proven experience managing large-scale enterprise network environments. We require a strong understanding of routing and core network protocols, including TCP/IP, DNS and DHCP. We require deep knowledge of network security principles and technologies. We require experience with firewalls, VPNs and encryption standards. We require hands-on experience with virtualisation platforms such as VMware vSphere. We require strong Windows Server administration experience. Exposure to containerisation technologies would be beneficial. Experience working within structured IT service environments is required. Desirable certifications include CCNP or CCIE, JNCIP, and ITIL certification or framework exposure. Responsibilities: We are responsible for the design, implementation and ongoing management of complex network and infrastructure solutions across the business. We design and maintain enterprise-level network architecture including LAN, WAN, WLAN and VPN. We ensure high availability, performance and scalability across network services. We troubleshoot and resolve complex network and infrastructure issues. We manage and configure network hardware including routers, switches, firewalls and load balancers. We lead infrastructure upgrades, migrations and improvement projects. We implement secure remote access solutions using VPN, IPsec, SSL/TLS and SSH. We manage network security controls including firewall policies, IDS/IPS, encryption and PKI. We monitor network performance, capacity and security, identifying opportunities for optimisation. We support disaster recovery and business continuity planning. We manage patching, system updates and configuration backups. We produce and maintain technical documentation. We provide technical guidance and mentoring to junior team members. We support incident response and participate in on-call support where required. Technologies: Firewall Hardware Support ITIL LAN Network Security TCP/IP VPN VMware WLAN Windows DevOps More: We are a well-established organisation based in West Wales, offering a permanent, full-time Senior Network & Infrastructure Engineer opportunity in a modern on-site working environment. Our IT function is forward-thinking and technically strong, with a focus on infrastructure strategy, project delivery and operational excellence. We offer a competitive salary from £48,000, along with benefits including cycle to work scheme, sick pay, referral programme, on-site parking and bereavement leave. This is an excellent opportunity for a senior infrastructure specialist to make a genuine technical impact within a stable organisation. last updated 20 week of 2026