IT Infrastructure Specialist

Colt Technology Services
London

Job Summary

Reporting to the IT Infrastructure Manager, an IT Infrastructure Specialist is responsible for the provision of technical support, deployment and design for our business critical IT Infrastructure. This is a key role in an IT Infrastructure Team that manages our on-premise private cloud and server estate and public cloud platforms.

Job Description

Key accountabilities include:

Delivery of 2nd/3rd line operational support for IT services
Technical resource and, where required, technical lead for projects and BAU activities ensuring delivery within agreed scope and timeframe
Delivery of 2nd/3rd line operational support for IT services
Working with Incident Management Teams to restore service quickly and efficiently and, where required, Problem and Change Management Teams to complete any follow up actions
Supporting Business Application and Change and Delivery Teams on a pipeline of maintenance and enhancement activities
Supporting Service Delivery Managers with IT Infrastructure Changes by providing technical expertise at CAB Meetings and, where required, the technical resources to implement changes
Working with IT Infrastructure Architects and 3rd party specialists on the design of new solutions
Planning and executing changes in accordance with policies and processes
Documenting procedures, processes and high and low level designs
Researching current and emerging technologies

Skills and Experience:

Managing a Windows Infrastructure, including Active Directory, DHCP, DNS (Essential)
Managing an Azure public cloud environment (Desirable)
Implementing IT security Best Practices (Essential)
Managing a VMWare vSphere/ESX environment (Essential)
Networking, including Layer 2/3 switching, firewalls and Wireless networks (Desirable)
Enterprise Database (SQL Server, Azure SQL Database (Desirable)
Microsoft 365 tenant, including Azure AD (Desirable)
Scripting and automation, including Powershell and vbscript (Desirable)
Industry Accreditation (Microsoft, VMWare, Cisco, Juniper, etc…) or evidence of relevant work experience

Posted 2025-11-24

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