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Senior Network Engineer; DV Cleared

Job in Milton Keynes, Buckinghamshire, MK1, England, UK
Listing for: Certes IT Service Solutions
Full Time position
Listed on 2026-07-10
Job specializations:
  • IT/Tech
    Cybersecurity, Network Security, Network Engineer, Systems Engineer
Salary/Wage Range or Industry Benchmark: 55000 - 85000 GBP Yearly GBP 55000.00 85000.00 YEAR
Job Description & How to Apply Below
Position: Senior Network Engineer (DV Cleared)

A Senior Network Engineer (DV Cleared) is required for our Government Client to support various tiered systems and support a wider team of skilled technicians supporting various Goverment platforms and services.

You will also support business as usual (BAU) and project deliverables where required.

As the Senior Network Engineer you will be responsible for designing, implementing, securing, and maintaining enterprise network infrastructure with a focus on high availability, performance, and resilience. This role provides advanced technical leadership across routing, switching, firewall administration, and network security operations. You will act as an escalation point for complex issues involving Cisco switching platforms
, Cisco Firepower Threat Defense (FTD), and Palo Alto Networks Next-Generation Firewalls
, Catepan encryption devices.

Essential Skills & Experience required
  • To possess current DV Level Security Clearance
    * essential*
  • Experience in support and design in highly secure airgapped environments.
  • Cisco Switching, Routing technologies
  • Network Security technologies – IPsec, SSL, VPNs, PKI
  • Cisco Firepower/ASA Firewall installation and Administration
  • Palo Alto Firewalls/Panorama installation and administration.
  • Knowledge of NSX-T platform
  • Knowledge of Virtual Environments and virtual network solutions,(e.g. VMWare)
  • Network monitoring and configuration tools
    - Solar Winds NCM, PRTG, KIWI
  • Encryption Devices – Catapans, Bulldogs
  • Copper/Fibre Optic patching
  • Windows Active Directory, DNS, DHCP, NPAS, Certificate Services
  • Software Defined Access
    - Dot1X, IBNS 2.0
Desirable would be any of the following
  • ITIL Processes
  • Service Now
  • BeCrypt OS
  • Knowledge of Linux
  • Diodes
Duties include

As the Senior Network Engineer (DV Cleared) your remit will include the following:

  • Enterprise LAN/WAN design, optimization, and lifecycle management
  • Firewall, IPS/IDS, and network security policy management
  • Advanced troubleshooting of network performance, connectivity, and security issues
  • Leading network modernization, migration, and automation initiatives
  • Ensuring compliance with security frameworks and organizational standards
  • Collaboration with cross-functional IT teams to deliver secure, scalable solutions

Please be advised that due to the nature of this role, you will be required to be on the client site full time five days per week (No remote working)

If this role is of interest then  to:

#J-18808-Ljbffr
Position Requirements
10+ Years work experience
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