Network security administrator

Network & Security L2 Administrator Contract


Location:West London Office-Based
Rate: Competitive DOE, inside IR35
Duration: 6 months initially
Shift Pattern: 24/7 support environment with rotational shifts and days off


Our client, a global consultancy, is looking for experienced Level 2/3 Network & Security Administrators to deliver high-impact technical support across a large, complex enterprise network.


Key Responsibilities:
* Provide L2/L3 support across OSI Layers 17

* Troubleshoot and resolve issues across wired, wireless, and cloud-enabled networks

* Monitor network health using advanced diagnostic and monitoring tools

* Implement and support Cisco WLAN Controllers, SSIDs, Access Points

* Configure and troubleshoot routing protocols OSPF, BGP, EIGRP, VLANs, NAT, etc.

* Administer and maintain firewalls (Checkpoint), VPNs, and F5 LTM

* Manage DNS/DHCP, IPAM, software patching, and SSL certificates

* Collaborate with vendors and internal teams to resolve incidents

* Handle major incidents and proactively mitigate risks