Senior Network Engineer (DV Cleared or DV Eligible) - South East

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.