Mobile Critical Power Technician

About the Role

People truly are at the heart of our business and we believe in empowering our colleagues to develop their skills, make decisions and take on new responsibilities.

We are looking for a skilled and proactive Depot Engineer to maintain, repair, and prepare our critical power equipment to the highest standard. This is a hands‑on workshop‑based role where you will be the technical expert ensuring our loadbanks, transformers, generators, battery energy storage units (BESS), UPS units, and distribution equipment are always project‑ready. Your work is the foundation for the success and reliability of our field operations.

Your Key Responsibilities Will Include

• Equipment Maintenance & Repair:
  • Perform planned maintenance (PPM), diagnostics, repairs, and modifications on a range of critical power equipment, including:
  • Loadbanks (AC/DC, Resistive/Reactive)
  • Generators
  • Battery Energy Storage Units (BESS)
  • Uninterruptible Power Supplies (UPS)
  • Transformers
  • Power Distribution Units (PDUs)
  • Cables and Connectors
• Conduct functional testing on all equipment post‑repair and pre‑dispatch to ensure 100% operational readiness.
• Accurately complete job cards, service reports, and test certificates for all work undertaken.
• Workshop & Yard Operations:
  • Work closely with the Yard Hands to prepare and kit equipment for specific projects, ensuring all components are present and correct.
  • Fault‑find and troubleshoot equipment returns, identifying issues and implementing effective repairs.
  • Maintain the workshop and yard areas allocated to Critical Power, ensuring they are clean, safe, and organised.
  • Manage workshop tools and test equipment, ensuring they are calibrated and in good working order.
• Technical & Logistics Support:
  • Provide remote technical support and guidance to the Field Service Team when on‑site.
  • Assist the Operations Manager with sourcing parts and managing workshop stock levels.
  • Occasionally assist with the loading and unloading of equipment, verifying its condition upon return from hire.
• Health & Safety:
  • Adhere to all company and statutory Health, Safety, and Environmental regulations at all times.
  • Participate in risk assessments and follow safe systems of work, including the use of appropriate PPE.
  • Report any near misses, defects, or hazards immediately to the Operations Manager.

Benefits

We provide an industry‑leading flexible rewards package including generous holiday allowance (with the opportunity to buy and sell annual leave), life assurance, retail discount scheme, employee recognition awards and a great company pension scheme.

About You

We’ll talk to you about your training and personal development needs and what you’d like to do to further your career and support your future aspirations.

• Proven experience as a service, maintenance, or workshop engineer within the power generation, critical power, or a related electrical field.
• Strong electrical background with the ability to read schematics and conduct fault‑finding on complex three‑phase systems.
• Hands‑on experience with maintaining and repairing at least some of the following: loadbanks, transformers, UPS systems, or power distribution.
• Competent in using electrical test equipment (multimeters, clamp meters, insulation testers).
• A proactive, problem‑solving attitude with excellent attention to detail.
• A full, valid driver’s licence.

Desirable Qualifications & Skills

• Formal qualification in an electrical discipline (e.g., City & Guilds, NVQ Level 3).
• Testing and Inspection qualification (e.g., 18th Edition, 2391).
• Knowledge of health and safety protocols in a workshop environment.
• FLT (Forklift Truck) licence.

About Us

Why Sunbelt?
Sunbelt Rentals delivers the equipment and expertise to move every industry forward across construction sites, energy projects, government initiatives and unforgettable events. With our ambition to be an employer of choice, Sunbelt Rentals is an ideal destination for your next career move.

We are committed to the fair treatment of our staff, potential staff, and users of our services, regardless of race, gender, religion, sexual orientation, responsibilities for dependants, age, physical or mental disability, or offending background. Having a criminal record will not automatically bar an individual from working with us. We judge each case on its own merits, taking into account the relevance of the conviction to the role, the circumstances, and the time passed since the offence.