Windows Infrastructure Engineer | SC Cleared, London Hybrid

Lorien; Greater London; Hybrid; GBP 70,000 - 110,000; Full time

Job summary

Lorien is seeking an experienced Infrastructure Windows Engineer to join a leading global banking organisation in London on a 6-month contract. The role requires active SC clearance and hybrid working.

You will design, support, and optimise the Microsoft infrastructure estate, ensuring security, resilience, and regulatory compliance within a complex environment. Collaboration with Security, Cloud, Network, and Engineering teams is essential for delivery.

Qualifications

• Extensive experience managing Microsoft Windows Server environments.

Responsibilities

• Administer and support large-scale Windows Server environments across production and non-production platforms.
• Manage core Microsoft technologies including Active Directory, Group Policy, DNS, DHCP, and certificate services.
• Support and optimise VMware and virtualised infrastructure environments.
• Drive infrastructure automation through PowerShell and other scripting technologies.
• Deliver security hardening, vulnerability remediation, patching, and compliance activities.
• Troubleshoot and resolve complex infrastructure incidents with root cause analysis and preventive measures.
• Collaborate with Security, Cloud, Network, and Engineering teams on infrastructure enhancements and strategic projects.
• Participate in major technology upgrades, platform migrations, and transformation initiatives.
• Ensure infrastructure services meet stringent availability, resilience, and regulatory requirements.
• Produce and maintain high-quality technical documentation and operational procedures.
• Contribute to continuous improvement initiatives and engineering best practices.

Skills

Active Directory

Group Policy

DNS

DHCP

PowerShell scripting

VMware vSphere

Automation

ITIL

Security hardening

Patching

Documentation

Tools

SCCM/MECM

Azure DevOps

GitHub

Terraform

Ansible

Intune

Job description

Lorien is seeking an experienced Infrastructure Windows Engineer to join a leading global banking organisation in London on a 6-month contract. The role requires active SC clearance and hybrid working.

You will design, support, and optimise the Microsoft infrastructure estate, ensuring security, resilience, and regulatory compliance within a complex environment. Collaboration with Security, Cloud, Network, and Engineering teams is essential for delivery.