IT Infrastructure Engineer

IT Infrastructure Engineer – London – Hybrid – Competitive Salary

We are on the hunt for a well-experienced IT Engineer to join a growing team of professionals delivering support and strategic transformations within a large construction business in the UK.

Role Responsibilities:
• Configure, monitoring, and maintain network infrastructure and security
• Administration, support, assist with development of all Server, user and infrastructure hardware. Including Virtualisation.
• Administration of Software across the business, including Servers and user devices. Comply and maintain the internal Approved Software List Process. Including administration of COINS ERP.
• Monitor and maintain Microsoft environment
• Monitor resolution of Helpdesk tickets and act as an appropriate escalation point
• Undertake planned & ad-hoc IT Projects
• Create, update and maintain all IT documentation for the business
• Administration of security solutions, ensuring GRC are maintained
• Assist in the implementation of business improvements, ensuring compliancy with all appropriate policies and procedures
• Be able to make autonomous decisions in line with the department and business requirements, ensuring that this is in line with the IT strategy/IT Manager direction

Technical Expertise:
• Experience with Windows Server Administration, patch management, OS Hardening
• Hyper-V experience, VM provisioning, resource allocation, backup, HA, failover clustering
• AD/AAD, GPO, Azure AD Connect/Entra ID sync, SSO, MFA, Conditional Access
• Administration of Microsoft offerings including O365
• Knowledge of Microsoft Defender for Endpoint / Microsoft Security Suite / Microsoft Sentinel (or similar SIEM monitoring)
• Experience working with Role-based access control (RBAC) and privileged identity management
• Awareness of ISO 27001 / Cyber Essentials compliance controls
• IAM, PAM, XDR, GRC Tools
• Confidence with Disaster Recovery and Business Continuity projects
• Powershell scripting experience
• Networking experience including:
o LAN/WAN management (switches, routers, VLANs)
o VPN and remote access solutions
o Firewall configuration and monitoring
o Understanding of DNS, DHCP, TCP/IP troubleshooting


  • Location: City of London, England
  • Type: Permanent
  • Recruiter: STR Group Limited
  • Posted: 19-Sep-2025
  • Posted on: careers4a.com