Infrastructure Engineer - DV Cleared

CBS Butler; Greater London; On-site; GBP 75,000 - 81,000; Full time

Job summary

A leading security services firm seeks a Senior Infrastructure Engineer with active DV clearance for a full-time position in London. The role involves designing, building, and maintaining Windows-based infrastructure. Candidates should possess strong Wintel engineering skills and experience in secure environments, including VMware and Active Directory. The position offers a competitive salary range of £75k - £81k, along with an annual bonus and the opportunity to work on mission-critical systems.

Benefits

Competitive salary

Annual bonus

Long-term role in a secure environment

Qualifications

• Must have current active DV clearance.
• Strong experience in Wintel infrastructure engineering.
• Solid troubleshooting skills in secure environments.

Responsibilities

• Design, build, support, and maintain Windows infrastructure.
• Administer Active Directory, including DNS and DHCP.
• Manage and support VMware environments.
• Troubleshoot complex infrastructure issues.

Skills

Active DV clearance

Wintel infrastructure engineering

Windows Server (2016/2019/2022)

Active Directory

VMware vSphere/ESXi

General infrastructure troubleshooting

Tools

VMware

PowerShell

Monitoring tools (e.g., SCOM)

Job description

Overview

Senior DV Cleared Infrastructure Engineer (Wintel) – London. Location: London (Full-time, 100% onsite). Salary: £75,000 - £81,000 + Bonus. Security Clearance: Active DV clearance required.

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.

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 life cycle 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