Onsite Data Centre Facilities Lead in Chesterfield

Era4 develops, owns and operates AI infrastructure across the UK, powered by renewable energy. Converting legacy industrial and energy sites into modern data-centre facilities, Era4 is combining brownfield regeneration opportunities with cleaner, efficient, scalable compute capacity for healthcare, research, finance, enterprise, and public-sector organisations.

We’re seeking a Data Centre Facilities Supervisor to ensure our data centres operate at peak safety, reliability, and efficiency. This role sits at the heart of Era4’s mission‑critical infrastructure, overseeing the electrical, mechanical, and HVAC systems that keep our environments stable, secure, and resilient.

You’ll take ownership of day‑to‑day operations, preventive and predictive maintenance, incident response, and continuous improvement across our facilities. From managing UPS systems and liquid‑cooling HVAC equipment to coordinating contractors and ensuring compliance, you’ll safeguard the infrastructure that powers our services. This role requires a hands‑on technical leader who can diagnose complex issues, guide maintenance activities, uphold rigorous safety standards, and ensure all systems meet enterprise‑grade expectations for uptime, security, and operational excellence. Please only apply if you can commit to being onsite in Chesterfield 5 days a week.

• Oversee daily operation and maintenance of all critical electrical, mechanical, and HVAC/liquid‑cooling systems across the data centre.
• Lead preventive and predictive maintenance programmes, ensuring reliability, uptime, and rapid incident response with structured root‑cause analysis.
• Manage and optimise critical infrastructure performance including UPS, generators, PDUs, CRAC/CRAH units, chillers, cooling towers, and BMS/EMS systems.
• Ensure full compliance with safety standards, LOTO procedures, permits‑to‑work, fire suppression protocols, and regulatory requirements.
• Maintain accurate technical documentation including SOPs, single‑line diagrams, asset registers, and commissioning records.
• Supervise vendors, contractors, and third‑party technicians while managing service contracts, warranties, and project deliverables.
• Support facility upgrades, retrofits, and capital projects from scoping through commissioning, ensuring seamless integration and operational readiness.

• Hands on experience with data centre electrical and mechanical systems (main power feeds, transformers, generators, switchgear, UPS, ATS, PDUs, chillers, CRAC/CRAH units, pump skids and busbar systems).
• Strong understanding of HVAC systems, temperature/humidity control, airflow management and cooling load optimisation.
• Proficiency with BMS/EMS platforms including alarms, trend analysis, setpoint management and commissioning.
• Ability to read and update technical drawings (SLDs, P&IDs, mechanical schematics).

• Experience in mission critical environments such as data centres, hospitals or industrial facilities.
• Strong fault diagnosis skills with a structured approach to troubleshooting.
• Familiarity with change management, project support and maintenance planning.

• Knowledge of electrical safety, LOTO procedures, NFPA/OSHA principles and relevant regulatory frameworks.
• Demonstrated commitment to safe working practices and operational discipline.

• Clear communication skills for incident reporting, stakeholder coordination and technical explanation.
• Strong planning, scheduling and time management abilities.
• Experience mentoring junior team members and supporting team development.

• International Facility Management Association (IFMA) certifications (Facility Manager, Certified Facility Manager CFm) (as applicable).
• HVAC-R certifications (EPA 608, EPA 609 as applicable).
• Electrical qualifications (e.g., NVQ/ONC/OND in UK; EIT/FE in US; electrical safety certifications).
• NFPA, OSHA, LOTO training (as applicable).

Why Join Era4: You’ll be joining a mission-driven start-up building critical national infrastructure, where operational excellence directly enables growth. This role offers high visibility with leadership, real autonomy, and the chance to shape how a next-generation company operates at scale.

Diversity & Inclusion: Era4 is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.