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X4 Technology

Network Engineer

X4 Technology
United Kingdom · Contract · Mid-Senior

Job Title: Network Engineer (Active SC Clearance Required)

Job Type: Contract

Location: Hybrid in London

Day Rate: £500-525/day (INSIDE IR35)

Contract Length: 6-12 months


Network Engineer - Role & Responsibilities

  • Design, configure and deploy routers, switches, firewalls, and load balancers in lab and production environments
  • Build and test network prototypes to validate design performance, redundancy, and failover scenarios
  • Perform detailed network troubleshooting using packet captures, log analysis, and diagnostic tools to resolve complex connectivity issues
  • Implement routing, switching, and security configurations (e.g., VLANs, BGP, OSPF, ACLs, VPNs) according to design specifications.
  • Execute network migrations, hardware refreshes, and cutover activities with minimal downtime and verified post-implementation testing


Network Engineer - Required Experience

  • Active SC Clearance
  • 5+ years' experience as a Network Engineer
  • Cisco Routing & Switching
  • F5 Load Balancing
  • Infoblox
  • Cisco certifications preferred (CCNP minimum)


Interviews: March 2026

Start Date: March 2026


How to Apply:

  • Apply to Gary Hargreaves at X4 Technology to learn more about the role or connect with me on LinkedIn to hear about regular job updates available with X4 Technology

Key Skills

Ranked by relevance

prototypes firewalls switches routers ccnp ospf vpns acls bgp
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Posted
Feb 24, 2026
Type
Contract
Level
Mid-Senior
Location
London Area

Industries

IT Services IT Consulting

Categories

Information Technology

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