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Simon James I.T. Ltd
Data Center Engineer

Data Center Engineer

On site

Hayes, United kingdom

£ 4,600 /month

Freelance

24-02-2026

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Job Specifications

Data Centre Engineer x3 - Global Big Four Tech Client

We are supporting a major hyperscale data center in London in hiring two Data Center Technical Operations Engineers (DCEO) to help manage increasing operational demand and a series of critical parallel projects.

This role sits within the DCEO team and supports the facility’s power and cooling infrastructure, operational readiness and ongoing site projects, including fire extinguisher installations, PDC work, LLT/MOT preparation, BACOP testing and commissioning, whip installations and network rack power‑ups.

What You’ll Be Doing

You will play a key role in maintaining the safety, reliability and uptime of the data center, including:

Carrying out routine rounds and operational checks on electrical and mechanical systems such as UPS, switchgear, transformers, diesel generators, HVAC systems and VFDs.
Troubleshooting incidents within agreed internal SLAs.
Supervising contractors performing servicing and preventive maintenance.
Supporting ongoing site project activity at during a period of increased workload.

What We’re Looking For

Essential:

Experience in data center engineering operations.
2+ years supporting data center environments.
Bachelor’s degree in Mechanical, Electrical or related engineering. Knowledge of mechanical systems (HVAC, controls) or strong electrical competency and theory.

Why This Role Matters

You will be joining at a pivotal time as this site progresses through critical site readiness, testing and commissioning activities. The environment provides exposure to large‑scale, hyperscale data center operations and a mix of BAU and structured project work—ideal for engineers looking to broaden both technical and operational expertise.

About the Company

Simon James IT is an international specialist IT consultancy based in the City of London. Coming from successful consultancy backgrounds we have taken the positive elements of large scale recruitment and built a business model to provide a personalized solution for your recruitment needs. We offer a dedicated service to ensure you get the best possible candidates within both your timescales and budget. Our business has grown organically from building solid foundations within niche technology areas and working closely wit... Know more