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

London Area

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