Network Infrastructure Engineer (Urgent)

Our client, a large organisation with over 5,000 staff, is urgently seeking a skilled and motivated Senior Network Infrastructure Engineer to join their Head Office team in Hertfordshire. This is an exciting opportunity for an experienced engineer with a strong background in network design and multi-site infrastructure , who is also comfortable working across on-premises server platforms and hybrid environments.

You’ll play a key role in designing, maintaining, and evolving our network and infrastructure , supporting our multi-office WAN environment. Your work will include managing routers, switches, firewalls, and SAN storage , as well as overseeing Windows Server, Active Directory, and VMware platforms. You’ll be actively involved in the transition from current network to enterprise-grade network solutions such as Juniper, Cisco, or Fortinet , would be highly beneficial.

This role also provides exposure to On-perm, Azure, Microsoft 365, and hybrid cloud technologies , but your main focus will be on network infrastructure, server environments, and WAN connectivity . You’ll be responsible for planning, implementing, and optimising network designs to ensure reliability, performance, and scalability across multiple sites.

We’re looking for someone who is hands-on, technically curious, and project-focused , with a proven track record of delivering multi-office network infrastructure projects . Fortinet, Juniper, or Cisco certifications would be an advantage but are not essential .

In return, you’ll join a forward-thinking IT team where your expertise will have real impact , and you’ll be supported to take ownership of complex challenges, drive continuous improvement, and contribute to the evolution of enterprise infrastructure.

If you’re passionate about network and infrastructure projects , enjoy solving technical challenges, and want to work with enterprise-grade systems across multiple sites, we’d love to hear from you.