IT Infrastructure Specialist

Colt Technology Services
London

What you will do

At Colt Data Centre Services this is our business. Colt Data Centre Services offers flexible and affordable colocation and IT infrastructure solutions. Our connectivity and colocation solutions allow our customers freedom to plan effectively for the growth of their business, knowing that their data centre strategy is future-proof. We operate 15 state-of-the-art data centres across Europe and APAC, offering 24/7 security and local language support. We are connected to a further 530+ third party data centres across our network and are able to offer private links into the major public cloud providers.

We are at a critical turning point as we become an independently focused business and at the same time, supported with the strong backing and investment of Fidelity. We expand our footprint in Asia and Europe which enables us to invest and leverage our real estate and infrastructure to expand our current sites and open up new ones.

You’ll be part of a dynamic, agile , forward thinking team of individuals that are looking significantly grow the business. This is an exciting time and a new beginning for Colt DCS.

Our vision: to be the most customer centric data centre provider

What we're looking for

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.

  • 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

Role specific requirements

  • 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)

Posted 2026-05-15

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