Wireless Senior Network Engineer, Wi-Fi

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 & 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.

• 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.

• 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 configurations, VSS, OSPF, and high-availability setups.
• Hands-on experience with security tools such as McAfee HIPS, Trend Micro, SafeNet Ethernet Encryptor, and Tripwire.
• Familiarity with centralized authentication services (AAA), RADIUS, and RSA.
• Experience with network automation tools and Scripting languages like Python, Ansible, or Terraform is advantageous.

• Cisco Certifications: CCNA, CCNP, or CCIE in Wireless or Enterprise Infrastructure.
• CWNP Certifications: CWNA, CWSP, CWDP, or CWNE.
• Other: ITIL V3 Foundation, JNCIA, or JNCIS.

• Experience in high-density Wi-Fi deployments, preferably in large venues or arenas.
• Ability to lead and coordinate wireless network projects from conception to completion.
• Strong analytical and problem-solving skills with a proactive approach to network optimization.
• Excellent communication skills to liaise with stakeholders and cross-functional teams.

This role offers an exciting opportunity to work at the forefront of wireless networking within the financial industry, ensuring robust and secure connectivity across critical operations. As the Wireless Network Engineer, you will have a pivotal role in the company and be the go-to expert for any Network and Infrastructure issues. You will also work with some high-profile customers and projects to help transform their business.

CACI Network Services develops individuals through a portfolio of training and development options such as certified training courses, workshops, technical conferences, boot camps, online training and much more. You will have the opportunity to work on some of the most advanced networking hardware in the industry as well as development of your abilities and talents to become one of the best in the field.

In return you will be awarded with a competitive salary, excellent benefits and the opportunity to develop your career and skills within a growing company.