Head Resourcing
Senior Network Engineer
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Role: Cisco Network & Security Engineer (Cisco ISE & Wireless)
Length: 6 month Contract
Day Rate: £475 Inside IR35
Location and working model: Hybrid working 3 days onsite – (Harlow)
SC Clearance - Essential
We're supporting a leading defence organisation in the search for an experienced Cisco Network & Security Engineer contractor, with strong expertise across Cisco ISE, Catalyst 9800 Wireless, and Enterprise Networking. Candidates must have SC Clearance, and be able to work in a hybrid working arrangement up to 3 days in the office.
Key Skills Required
- Strong networking fundamentals (TCP/IP, OSI, VLANs, DHCP, DNS, BGP, OSPF, EIGRP)
- Extensive experience with Cisco ISE
- 802.1X, MAB, RADIUS, EAP-TLS/PEAP
- Policy Sets, Authorisation Profiles, Endpoint Profiling
- Guest & BYOD onboarding
- HA, upgrades, backup & restore
- Strong hands-on experience with Cisco Catalyst 9800 WLCs
- CAPWAP, roaming, mobility
- WLANs, policy profiles and tags
- RF optimisation, FlexConnect and high-density deployments
- Expertise integrating ISE and Wireless environments
- Authentication troubleshooting (Client → AP → WLC → ISE)
- Dynamic VLAN assignment, CoA, role-based access
- Strong troubleshooting, documentation and stakeholder management skills
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Desirable
- Cisco DNA Center
- Forcepoint Firewalls
- Automation/API exposure (ISE or IOS-XE)
- CCNP Enterprise, CCNP Security, Cisco ISE Specialist or CWNA/CWNP certifications
Security Clearance
- Current SC Clearance or eligibility to obtain SC Clearance.
This is a fantastic opportunity to join a complex enterprise environment, working on critical network access, security, and wireless infrastructure projects.
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PLEASE NOTE – Head Resourcing DO NOT use AI in the matching/screening/selection of candidates.
Head Resourcing is committed to being an inclusive business where diversity is valued and celebrated. Diversity to us, includes but is not limited to: educational background, socio-economic background, neurodiversity, age, marriage and civil partnership status, veteran status, gender, gender identity, gender reassignment, sexual orientation, disability, religion or belief, race and ethnicity. As such we welcome enquiries and applications from everyone. We will be happy to discuss with you any workplace adjustments you need in order to be at your best during the recruitment process.
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