Infrastructure Engineer - DV Cleared

CBSbutler Holdings Limited trading as CBSbutler; Greater London; On-site; GBP 75,000 - GBP 81,000; Full time

Job summary

A leading technology firm is seeking a Senior DV Cleared Infrastructure Engineer in London for a full-time onsite role. The successful candidate will design, build, and support Windows-based infrastructures while ensuring security best practices. Essential skills include current DV clearance, strong experience in Wintel infrastructure, and proficiency in Active Directory and VMware. The opportunity offers a competitive salary of £75k - £81k plus bonus, working in a secure and stable environment.

Benefits

Competitive salary

Annual bonus

Stable long-term role

Qualifications

• Active DV clearance is required.
• Strong experience in Wintel infrastructure engineering.
• In-depth knowledge of Windows Server, Active Directory, DNS, DHCP, and VMware.

Responsibilities

• Design, build, support, and maintain Windows-based infrastructure.
• Administer Active Directory and associated services.
• Manage VMware virtualised environments.
• Troubleshoot complex infrastructure issues.

Skills

Wintel infrastructure engineering

Security best practices

Windows Server (2016/2019/2022)

Active Directory

VMware vSphere / ESXi

Troubleshooting skills

Tools

PowerShell

SCOM

Job description

Senior DV Cleared Infrastructure Engineer (Wintel)

Location: London (Full-time, 100% onsite)

Salary: £75,000 - £81,000 + Bonus

Security Clearance: Active DV clearance required

Overview

We are looking for a Senior Infrastructure Engineer with active DV clearance to join a high-security environment in London. This is a hands‑on role focused on Wintel and core infrastructure services, supporting and maintaining critical systems in a fully onsite setting.

You’ll be working as part of an experienced infrastructure team, taking ownership of enterprise‑scale environments and contributing to the stability, security, and improvement of key platforms.

Key Responsibilities

• Design, build, support, and maintain Windows‑based infrastructure
• Administer and support Active Directory, including GPOs, DNS, DHCP, and user/device management
• Manage and support VMware virtualised environments
• Troubleshoot and resolve complex infrastructure issues across servers and core services
• Apply security best practices within a highly regulated environment
• Participate in system upgrades, patching, and lifecycle management
• Produce and maintain technical documentation
• Work closely with other infrastructure, network, and security teams

Essential Skills & Experience

• Active DV clearance (must be current)
• Strong experience in Wintel infrastructure engineering
• In‑depth knowledge of:

• Windows Server (2016/2019/2022)
• Active Directory, Group Policy, DNS, DHCP
• VMware vSphere / ESXi
• Solid general infrastructure troubleshooting skills
• Experience working in secure, enterprise or government environments
• Comfortable working full time onsite in London

Desirable Skills

• PowerShell scripting
• Backup and recovery solutions
• Monitoring tools (e.g. SCOM or similar)
• Exposure to security‑focused or air‑gapped environments

What's on Offer

• Competitive salary £75k - £81k
• Annual bonus
• Opportunity to work on highly sensitive, mission‑critical systems
• Stable, long‑term role in a secure environment