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Data Centre Engineer / Critical Site Engineer (Electrical)Cambridge Full-Time | Permanent Competitive Salary + Overtime + Training + Career Progression
Overview An excellent opportunity for an Electrical Engineer / Maintenance Engineer to join a growing team in the data centre and critical infrastructure sector, one of the UK’s most secure and high-growth industries.
This role is ideal for engineers seeking a long-term career in mission-critical environments, working on high-value electrical systems where uptime and reliability are essential. You will benefit from structured training, clear career progression, and exposure to advanced electrical and critical power systems.
The Role As a Data Centre Engineer / Critical Site Engineer, you will maintain and support critical electrical infrastructure within a live data centre environment, including:
- UPS systems (Uninterruptible Power Supply)
- Standby generators
- LV/HV electrical distribution systems
- Switchgear and control systems
- Building Management Systems (BMS)
Key Responsibilities Maintenance & Operations
- Carry out Planned Preventative Maintenance (PPM) and reactive maintenance
- Maintain and fault-find critical electrical systems
- Complete technical reports and maintain accurate documentation
- Use CMMS systems for job tracking and compliance
- Support 24/7 operations, including on-call rota participation
- Respond to and escalate critical incidents effectively
- Supervise subcontractors and ensure safe working practices
- Assist with remedial works, upgrades, and small projects
- Maintain compliance with Health, Safety, Environmental & Quality (HSEQ) standards
- Attend training, team meetings, and technical briefings
- Level 2 & Level 3 Electrical Qualification (City & Guilds or equivalent)
- 18th Edition Wiring Regulations (BS 7671)
- Experience in electrical maintenance (facilities, building services, or industrial environments)
- Strong fault-finding and PPM knowledge
- Good communication and teamwork skills
- Experience in data centres or critical environments
- HVAP / LVAP Authorisation
- Knowledge of UPS systems, generators, and critical power infrastructure
- Competitive salary + overtime opportunities
- Structured career progression (Senior Engineer / HV roles)
- Ongoing training and certifications
- Exposure to cutting-edge critical infrastructure
- Stable, long-term role in a recession-resistant sector
- Supportive and professional working environment