IT Network Engineer – Data Center, WAN & Security

DGH Recruitment; Greater London; On-site; GBP 55,000 - 75,000; Full time

Job summary

DGH Recruitment is seeking an IT Network Engineer for a London-based law firm on a permanent basis. You will oversee LAN/WAN/WLAN networks, data centers, and remote access, with emphasis on reliability, performance, and security.

Responsibilities include network design, maintenance, security, and leading complex projects from design to implementation. Strong experience with Cisco platforms and enterprise Wi‑Fi is required.

Qualifications

• Proven ability to design, implement, and support complex LAN, WAN, WLAN, and data center networks.
• Expert knowledge of Cisco or equivalent enterprise networking platforms, including BGP, OSPF, VLANs, STP, and EtherChannel.
• Strong understanding of network security principles, firewalls (e.g., Palo Alto, Cisco ASA), VPNs, and network segmentation.
• Experience with enterprise Wi-Fi design and troubleshooting (Aruba, Cisco, or similar), including authentication (802.1X, RADIUS).

Responsibilities

• Day to day technical support of network infrastructure at the Firm's datacenters and at firm office premises, ensuring a high level of efficiency in problem resolution and uptime
• Monitor network performance and integrity; analyse trends and SLAs.
• Troubleshoot/issue management of firm network infrastructure.
• Perform network maintenance, upgrades and refreshes
• Manage and support user remote access
• Perform wireless surveys, analyse results and remediation
• Develop and maintain system documentation
• Participate in change, problem, incident and request management
• Lead complex technical projects from design through implementation
• All other duties as assigned or required

Skills

LAN/WAN/WLAN networks

Cisco networking

Network security

Wi‑Fi design

Microsoft Office

iManage

Job description

DGH Recruitment is seeking an IT Network Engineer for a London-based law firm on a permanent basis. You will oversee LAN/WAN/WLAN networks, data centers, and remote access, with emphasis on reliability, performance, and security.

Responsibilities include network design, maintenance, security, and leading complex projects from design to implementation. Strong experience with Cisco platforms and enterprise Wi‑Fi is required.