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Infrastructure Engineers (Telephony)

MI5 | cheltenham, United-Kingdom | Posted June 11, 2026

Position Overview

Infrastructure Engineer (Telephony) Ref. 3734

Department Engineering

Location(s): Cheltenham

Salary: £37,892 (basic £35,134 + concessionary payment £2,758)

Flexible working: Primarily office‑based due to sensitive nature, but flexible working arrangements are supported, including flexitime, full‑time, part‑time, or compressed hours.

The role

As a Telephony Infrastructure Engineer, you will keep the UK Government connected when it matters most. You will work across classified telephony platforms—including call gateways, enterprise media, and transcription services—to ensure services remain resilient, compliant, and ready for anything. You will engineer improvements, resolve complex cross‑domain issues, and collaborate with partners and suppliers.

You will be part of a collaborative team of experts, and as capability develops you may be eligible for a skill payment at Infrastructure Engineering Level 1 or above. On...

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