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Data Centre Team Leader

Job in Welwyn Garden City, Hertfordshire, AL8, England, UK
Listing for: Onnec
Full Time position
Listed on 2026-03-10
Job specializations:
  • IT/Tech
    Systems Engineer, IT Support
Job Description & How to Apply Below

Overview

ONNEC Group are a leading independent technology partner and global integrator, with over 30 years experience, and a 800+ team of global experts, specialising in providing end-to-end connectivity solutions that propel organisations everywhere.

From structured cabling to managed services, our end-to-end services give infrastructure that can be completely replied on. Design. Build. Deploy. Optimise. We offer a complete solution for business connectivity.

The Data Centre Team Leader is a key position in managing and providing support for our Client’s Data Centre cabling infrastructure, its server and network hardware environment and physical security controls.

Reporting to the Local Data Centre Manager, the Data Centre Team Leader will be site based and be responsible for the delivery of Moves, Adds and Changes (MAC) work and Business As Usual (BAU) works at a client Data Centre (In certain circumstance this may be multiple Data Centres and/or may include some Campus locations).

The role is focused on the coordination and management of a team of 4+ local DC operations engineers working on rotated 24/7 shifts, as well as assisting in remote management for the wider DC Ops staff in conjunction with the peer team lead.
The Data Centre Team Leader assists with the planning and smooth implementation of the day-to-day activities for all DC Ops engineering works.

Working with the client, Service Delivery Manager and Data Centre Manager to improve the operational systems, processes, and procedures in support of enhanced service deliverables and management reporting.

What you’ll be doing as our Data Centre Team Leader

Below is a non-exhaustive list of key responsibilities of both the DC TL and Operations Engineers. The Team Leader’s role is to ensure these elements are conducted properly in accordance with the processes and procedures defined by the Client and to aid or perform the tasks where necessary.

Device provisioning and change execution:

  • Building equipment racks, copper & fibre patching, SFP module installations and complete hardware installations for new server deployments, ensuring adherence to documented procedures.
  • Connectivity testing for all installations (end-device patching)
  • Change record ownership for new installs and server move activities.
  • Assist with all facets of build process including shipping and receiving, identification of incompatibility and work around solutions.
  • Assisting in routine changes using the IDRAC / MGMT port for some changes (IP's, gateway, ports, etc.) and server relocations within and across the data centres
  • Swap out small, racked network devices
  • Decommissions & disposals:
  • Approve change record for phase 1 (cool off) & 2 (physical) changes.
  • Remove equipment to secure store area.
  • Arrange and manage asset disposal process as documented in central system.

Break/ fix & monitoring:

  • Responding to break/fix incidents
  • Assist in maintenance and monitoring of data centre systems to include incidents/events, problems, changes, monitoring, problem escalation/notification/resolution and all other aspects of support.
  • Continual monitoring of data centre support queues and then troubleshooting and diagnosing hardware problems
  • Performing daily date centre health checks
  • Perform date centre walkthroughs verifying alerts for PDUs, HVACs and RPPs as well as for any server ambers lights and reporting any finds to technical support.
  • Raise incident tickets, where applicable
  • Records and reporting

Inventory of cabling materials for provision – reported to DC Manager:

  • Capacity reporting and available cab count.
  • Inventory of data centre spares (memory, SFP, network cards etc) for hardware support and change works updated on central repository.
  • IT asset management, to include database record entries and updates (Service Now)
  • Raising asset lifecycle tickets for BAU installations/decommissions
  • Schedule tape rotation process and managing delivery/collection of new/used tapes (liaising with Production support)

Third party chaperone

  • Raising access via COLO portal
  • Raising access requests and liaising with Security team with activate/deactivate access cards.
  • Raising access, Smart hands, trouble tickets, delivery/collection…
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