CACI Network Services is a rapidly expanding specialist IT and Networks consultancy offering a wide variety of opportunities to work within challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms andamp; Utilities. We are looking for a seasoned Wireless Network Engineer to join our infrastructure team within a leading financial institution. The ideal candidate will have extensive experience in designing, implementing, and supporting secure wireless networks in high-availability, mission-critical environments. Key Responsibilities Design, deploy, and manage wireless LAN solutions, ensuring optimal performance and security. Implement and maintain Firewall solutions, including configurations from perimeter to DMZ roles. Collaborate with cross-functional teams to support IPS deployments across European branches. Develop and enforce global standards for networking devices and configurations. Conduct and remediate findings from penetration tests and security assessments. Lead the migration of network infrastructure to align with new security frameworks. Perform site surveys and RF planning using tools like Ekahau or AirMagnet. Required Skills and Experience Proven experience in wireless network engineering within banking or similarly regulated sectors. In-depth knowledge of Cisco wireless technologies, including multi-layer Switches and Routers (eg, Cisco 6500 series). Strong understanding of VLAN segregation, DMZ configura