Information Security

IT Infrastructure & Security Engineer

Tria Recruitment

London · Greater London · United Kingdom

Overview

In this role you will lead infrastructure and security projects within a Microsoft-centric environment, modernising the tech estate and strengthening resilience. You’ll work in a small, collaborative internal tech team with autonomy to shape technical decisions and deliver measurable improvements. The role combines hands-on delivery with IT governance, Pragmatically balancing infrastructure and security work to support the wider business. This is a meaningful opportunity to have a real impact on secure, scalable platforms and technical change.

Pay / Benefits
  • fantastic benefits package
  • hybrid (minimum one day per month in the office)
  • opportunity for ongoing professional certifications
  • ownership and autonomy in projects
Responsibilities
  • Lead infrastructure implementation and improvement projects
  • Manage and enhance Microsoft Azure and on-premise infrastructure
  • Administer Active Directory, Group Policy and virtualised environments
  • Drive server lifecycle management and platform optimisation
  • Deliver security improvements including AD reviews and GP hardening
  • Support Cyber Essentials compliance and embed security best practice
  • Identify opportunities to optimise Azure consumption and reduce cloud costs
  • Produce high-quality technical documentation and follow ITIL-aligned processes
  • Support occasional out-of-hours releases and join a future on-call rota
Key requirements
  • Experience with Microsoft infrastructure technologies
  • Microsoft Azure
  • Active Directory and Group Policy
  • VMware/vSphere
  • Server lifecycle management
  • Infrastructure implementation and project delivery
  • ITIL environments
  • Cyber Essentials and infrastructure security improvements
  • ownership and accountability
  • clear communication with technical and non-technical stakeholders
  • collaborative yet able to work independently
  • Microsoft infrastructure technologies
  • Microsoft Azure
  • Active Directory

Reference: WJ-747_31186715 · Posted 01 Nov 2026

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