Critical Electrical Engineer (Data Centre / Critical Environment)
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Location: Sheffield
Salary: £27.50 per hour + Overtime & Call-Out
Hours: Full-time + On-call rota
The Role We are seeking a highly skilled Critical Electrical Engineer to join our team, supporting mission-critical environments such as data centres, call centres, and trading floors. This role focusses on maintaining uptime, ensuring resilience of critical systems, and delivering rapid response to breakdowns in line with strict SLA requirements.You will play a key role in ensuring the electrical infrastructure and critical plant operate safely, efficiently, and without interruption.
Key Responsibilities
Respond to breakdown maintenance requests within agreed SLA times
Carry out planned preventative maintenance (PPM) and reactive works on electrical systems
Diagnose and repair faults across power distribution, UPS, CPS, and cooling systems
Perform repairs and maintenance on modular UPS systems
Test and diagnose power quality issues, including harmonic distortion using on-site analysers.
Provide emergency response, standby cover, and participate in a call-out rota
Escalate critical or high-risk issues to the Technical Services Manager
Respond effectively to work interruptions, outages, and emergencies in line with operational SLAs.
Ensure all maintenance records, compliance logs, and documentation are accurately maintained
Advise Facilities Management teams on changes or risks within critical environments.
Apply a risk-based maintenance approach when working on plant and infrastructure.
Support site audits and ensure compliance with all statutory and safety requirements
Undertake site surveys and produce technical reports, quotes, and recommendations
Essential Skills & Experience
18th Edition Electrical Wiring Regulations (essential)
Proven experience working in data centres or critical environments
Strong technical knowledge of:
Power distribution systems
UPS / CPS systems
Cooling and critical HVAC infrastructure
Experience diagnosing power quality issues and electrical faults
Ability to work under pressure in high-availability environments
Strong understanding of SLA-driven maintenance and response times
Excellent fault-finding and problem-solving skills
Full UK driving licence (if mobile)
What We're Looking For
A proactive, safety-first engineer with strong xsngvjr attention to detail
Ability to work independently and as part of a team
Flexible approach to working hours, including out-of-hours and overtime
Strong communication skills with the ability to liaise with technical and non-technical stakeholders
What's on Offer
Competitive salary and overtime opportunities
Call-out allowance
Ongoing training and development
Opportunity to work in high-profile, mission-critical environments
Career progression within a leading facilities management environment
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