Senior Infrastructure Engineer

Job description

Senior Infrastructure Engineer (SC Cleared)

SR2 is supporting a UK government defence programme who are looking for an experienced Infrastructure Engineer to take on a hands-on technical role with leadership responsibility within a live service environment. This is a key position providing technical escalation and direction for a small engineering team while supporting ongoing project delivery.

You’ll sit at the heart of the team, acting as the senior technical point of contact while remaining deeply hands-on. The role combines third-line support, platform ownership, and light team leadership, supporting a growing user base and evolving platform services within a secure MOD environment.

You must have Active SC clearance to apply for this role. The client cannot put you through this if you do not already have it.

Responsibilities:

• Act as technical escalation and lead engineer for a small delivery team
• Build, support, and maintain Windows Server environments
• Own Active Directory, Group Policy, and core Windows platform services
• Deliver machine builds and configurations using SCCM
• Support live, customer-facing services at a third-line level
• Produce and review high-quality technical documentation
• Evolve operational processes as the platform and demand scale

Requirements:

• Active SC clearance
• Strong Windows Server build and support experience
• Deep knowledge of Active Directory and Group Policy
• SCCM machine build and configuration experience
• Proven third-line support experience in live service environments
• Strong documentation skills with the ability to define and improve operational processes
• Defence experience
• HP ProLiant server and storage experience - desirable
• SSL certificate management (servers and desktop VPNs) - desirable
• Windows Server security hardening - desirable
• Implementing CIS benchmarks via GPO on existing servers - desirable

Overview:

• Inside IR35
• £450p/d
• Remote first (1-2 days a month onsite in MoD Corsham for key meetings)
• 1 stage interview

Please apply with a copy of your CV and Emma from SR2 will contact potential candidates regarding next steps.

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full-time jobs

Published at

03-03-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English