Senior Network Engineer (DV Cleared or DV Eligible)
Posted Today by SmartSourcing Ltd
£560 Per day
Inside
Hybrid
near Milton Keynes, Buckinghamshire, South East, UK
Summary: The Senior Network Engineer role involves providing technical leadership in a highly secure defence/national security environment. The position requires expertise in enterprise networking and security, with responsibilities including incident support and network design. Candidates must hold or be eligible for DV clearance and will work in a hybrid model, primarily on-site near Milton Keynes. The role is classified as inside IR35 and offers a competitive daily rate along with on-call allowances.
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
Key Skills:
- 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
Salary (Rate): £560/day
City: Milton Keynes
Country: UK
Working Arrangements: hybrid
IR35 Status: inside IR35
Seniority Level: Senior
Industry: IT
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- 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 diodesOn-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