Senior Network Engineer

We are seeking an experienced Senior Cisco Network Consultant to support a major security transformation programme for a leading UK engineering and defence organisation

The successful candidate will play a key role in delivering a single, enterprise-wide Network Access Control solution across multiple UK locations, replacing existing NAC platforms and standardising access control policies across the busines
s.
This is a hands-on technical delivery role requiring deep expertise in Cisco Identity Services Engine (ISE), network security, authentication services, and large-scale enterprise infrastructure environmen
ts.
Key ResponsibilitiesLead the deployment, configuration and implementation of Cisco ISE solutions across multiple sites.Implement and migrate Network Access Control (NAC) services from existing platforms into Cisco ISE.Deliver the approved Low-Level Design (LLD) and support technical implementation activities.Configure and manage authentication services including: 802.1X (wired and wireless), MAC Authentication Bypass (MAB), Guest Access and Captive Portal servicesIntegrate Cisco ISE with: Cisco Switching and Wireless Infrastructure, Active Directory, Microsoft Entra ID, Microsoft NPS and Firewalls/security servicesDesign and implement policy sets, profiling, posture assessment, and access control workflows.Perform testing and validation activities including Functional Testing, Failover Testing and User Acceptance SupportTroubleshoot complex authentication and network access issues during deployment and early life support phases.Work closely with network, security, and infrastructure teams
to ensure successful delivery.Produce technical documentation, implementation guides, and operational procedures.Deliver knowledge transfer sessions and workshops to internal IT te
ams.
Essential Skills & ExperienceStrong hands-on experience delivering multiple Cisco ISE implementations within enterprise environments.Proven experience migrating devices and services from existing NAC solutions.Deep understanding of: Cisco ISE 3.x or later, 802.1X Authentication, MAB/RADIUS and TACACS+, Guest Access Services, High Availability and Multi-Site DeploymentsExperience integrating Cisco ISE with: Active Directory, Entra ID, Microsoft NPS and Cisco Network InfrastructureStrong troubleshooting and diagnostic skills across network access and authentication technologies.Cisco Certified Network Professional (CCNP)CCNA with significant Cisco ISE implementation experienceCisco Fire Jumper Field Engineer Certific
ation
If you are an experienced Cisco ISE specialist with a proven track record of delivering enterprise NAC solutions, we would like to hear fro
m you.

Senior Cisco Network ConsultantLuton HQ (1-2 days a week with some travel to other UK Sites)BPSS EligibleUp to £65 p/h Inside IR35