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Senior Infrastructure Field Engineer (MI5)

Company

British Intelligence Agencies

Location

london, england

Posted

June 20, 2026

Position Overview

Requirements

  • While no specific qualifications are required for this role, you will already have extensive experience working in network engineering within a technical industry environment. You’ll bring a solid foundation in designing network solutions, with the confidence to operate across large-scale, mission critical infrastructure. In particular, you’ll be able to demonstrate expertise in several of the following areas:
  • Network design, architecture and transmission technologies, supporting resilient and high-performance network solutions
  • Layer 2 and Layer 3 technologies, including protocols, MAC and IP addressing, BGP and VPNs
  • Fibre optic networking, with practical experience of wavelengths, multiplexing (MUX), transponders and long‑haul transmission technologies
  • Automation, scripting and systems administration, including use of GNU/Linux operating systems at the command line, automation tools such as Ansible, and at leas...

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