Network Engineer

Overview

A UK-based engineering organisation is seeking an experienced Network Access Control (NAC) engineer to deliver a single, unified NAC solution supporting two major business divisions. This programme will enhance security, standardise access control, and centralise policy management across multiple UK sites.

• Lead the deployment, configuration, and implementation of Cisco Identity Services Engine (ISE) in enterprise environments.
• Implement NAC policies, including 802.1X, MAB, and guest access workflows.
• Integrate ISE with network infrastructure, including switching, wireless controllers, firewalls, Entrata , and Active Directory.
• Conduct testing and validation: functional testing, fail‑over testing, and meet agreed acceptance criteria.
• Troubleshoot complex access/authentication issues and provide early‑life support after go‑live.
• Configure guest access: captive portal, onboarding workflows, and sponsor portal configuration.
• Collaborate with security stakeholders to enforce compliance and security policy requirements.
• Produce and maintain technical documentation (design artefacts, diagrams, operational procedures).
• Provide a blend of on‑site and remote support during deployment and post‑implementation phases.
• Support incident response and root‑cause analysis for security/access events.
• Deliver knowledge transfer through workshops and training to internal IT teams.

• Pass a BPSS security check.
• Strong hands‑on experience delivering Cisco ISE 3.x (or later) implementations, including migration/transition of devices and services from prior NAC solutions.
• Multi‑site enterprise deployment experience, including high‑availability design and implementation.
• Experience with 802.1X for wired and wireless, MAC authentication bypass, and guest access with customisable workflows.
• Integration experience with existing Cisco estate and Microsoft services, including familiarity with Microsoft NPS.
• Strong operational capability in troubleshooting authentication, policy, certificate, and network‑access issues.

• CCNP preferred (or CCNA with extensive Cisco ISE delivery experience).

• Endpoint compliance/posture and profiling capabilities within ISE.
• Integrations with third‑party security tools (e.g., SIEM).