Network Engineer

Network Engineer
Location: Luton (approx. 20% onsite)
Duration: 6 months
Rate: £66.97 per hour (Umbrella)
IR35: Inside
Clearance: BPSS is required ahead of starting

Overview

Seeking a Network Engineer to deliver a single, unified Network Access Control (NAC) solution to support multiple UK sites. You'll support the configuration, testing and go-live of Cisco ISE hardware appliances, lead logical policy configuration, and migrate services from existing NAC solutions, implementing an approved low-level design.

Responsibilities:

• Lead the deployment, configuration, and implementation of Cisco ISE solutions across enterprise environments
  * Implement network access control (NAC) policies, including 802.1X authentication, MAB, and guest access workflows
  * Integrate Cisco ISE with network infrastructure components such as switches, wireless controllers, firewalls, Entra ID and Active Directory
  * Testing & validation: Functional testing, failover testing, and acceptance criteria.
  * Troubleshoot complex network access and authentication issues as part of early life support
  * Guest access implementation: Captive portal, onboarding workflow, and sponsor portal setup.
  * Collaborate with security teams to enforce compliance and security policies
  * Develop and maintain technical documentation, including design diagrams and security operation procedures
  * Provide on-site and remote support during deployment phases and post-implementation
  * Participate in incident response and root cause analysis for network security events
  * Knowledge transfer: Workshops or training sessions for IT teams.

Skillset/experience required:

• Strong hands-on Cisco ISE (3.x or later) experience (incl. multiple implementations and transition of devices/services)
  * High availability across multiple sites
  * 802.1X for wired and wireless networks + MAC Authentication Bypass (MAB)
  * Guest access with customizable workflows
  * Integration with existing Cisco network infrastructure
  * Knowledge of Microsoft NPS
  * Preferably CCNP (or CCNA with extensive Cisco ISE experience)
  * Cisco Fire Jumper Field Engineer Certification (preferred)
  * Experience with multisite enterprise environments
  * Able to pass BPSS