Job Description
Senior Network Engineer (DV Cleared or DV Eligible)
Rate: £560 per day (Inside IR35), plus on call allowances
Duration: 6 month contract
Location: Hybrid - 3 days per week on site near Milton Keynes
Clearance: DV (Developed Vetting) - active or eligible
Role Overview
We are seeking a Senior Network Engineer to support a highly secure programme within a defence/national security environment. This is a senior, hands-on role where you will provide technical leadership across enterprise networking and security, operating within high-assurance, air-gapped environments.
You will act as a senior escalation point, supporting complex incidents, contributing to secure network design, and ensuring the ongoing stability and compliance of critical infrastructure.
Key Responsibilities
Design, implement, secure, and support enterprise LAN/WAN infrastructure
Provide technical leadership across routing, switching, and network security
Act as an escalation point for complex network and Firewall issues
Support and maintain highly secure and air-gapped environments
Configure and manage network security controls, policies, and Firewalls
Contribute to secure network design and operational assurance activities
Participate in an on-call rota to support critical services
Core Skills Experience
Design, implementation, and support of enterprise LAN/WAN network infrastructure
Strong technical leadership across routing, switching, and network security
Hands-on experience with Cisco routing and switching technologies
Deep experience in network security including Firewalls, IPS/IDS, VPNs (IPsec/SSL), and PKI
Administration and support of Cisco Firepower/ASA and Palo Alto NGFWs (Panorama)
Experience acting as escalation in high-security, air-gapped environments
Familiarity with encryption technologies such as Catapan and Bulldog devices
Knowledge of virtualised networking including VMware and NSX-T
Experience with network monitoring and management tools such as SolarWinds and PRTG
Understanding of identity-based networking/Software Defined Access (802.1X, IBNS 2.0)
Solid grounding in Windows networking services including Active Directory, DNS, DHCP, and Certificate Services
Desirable Skills
NIST hardening guidelines
ITIL processes
ServiceNow
BeCrypt OS
Linux operating systems
Data diodes
On-Call Requirement - This role includes participation in an on-call rota with the following flat fees payable:
£50 for weekday on-call cover
£100 for weekends and bank holidays
Application Deadline: Close of Business Monday 22nd April.