BESS Technician

Aggreko; Dumbarton; On-site; GBP 32,000 - 46,000; Full time

Benefits offered by this job

Generous pension plan

Annual bonus opportunities

Paid volunteering days

Life Assurance

30 days leave + public holidays

Volunteer days

Employee Assistance Programme

Job summary

A global energy solutions provider based in Dumbarton is seeking a BESS Technician to maintain and repair the BESS fleet. The ideal candidate is a time-served Electrical Engineer with hands-on experience in electrical systems. Responsibilities include preparing estimates for repairs, troubleshooting faults, and maintaining overall system functionality. The role offers competitive salary, comprehensive benefits, and opportunities for professional development.

Qualifications

• Demonstrable hands-on experience in single and three-phase electrics.
• Experience maintaining and repairing BESS fleets and associated electrical equipment.
• Must hold a full, clean driving license.
• Ability to read schematics and apply technical knowledge across systems.
• Strong interpersonal and stakeholder communication.
• Safety‑first approach with regulatory compliance; proficient in MS Office.

Responsibilities

• Prepare estimates and action plans for repairs upon fleet arrival.
• Carry out maintenance and repair work.
• Testing, detecting, and resolving faults.
• Provide support for BESS operations and track timesheets/reports.
• Maintain maintenance records and produce work reports.

Skills

Electrical Engineering

Single-phase electrics

Three-phase electrics

Fault diagnosis

Excellent interpersonal skills

Interpersonal skills

Willingness to travel

Education

SCQF Level 7 / SVQ Level 3 or apprenticeship

Tools

Electrical testing equipment

Job description

Bring your energy to Aggreko as a BESS Technician based in Dumbarton. As a BESS Technician you are responsible for the repairs and maintenance of the BESS fleet that is offered to S&R to make it ready for hire again within the requirements and standards.

Power without pause. Heating, cooling and oil‑free air without end. We keep our customers’ worlds on. From world‑class events that last a few weeks to mining operations and remote communities who rely on us for decades.

What you’ll do as a BESS Technician

• Upon arrival of the fleet, prepare an estimate, determine which parts are needed and draw up an action plan.
• Carry out maintenance and repair work in accordance with company guidelines and/or in consultation with suppliers.
• Testing, detecting and resolving faults and if required, customising the sets according to customer specifications
• Provide support for the operational business specifically focused on BESS
• Keeping track of timesheets, maintenance and work reports

You are

• Time‑served Electrical Engineer (SCQF Level 7 / SVQ Level 3 or apprenticeship) with demonstrable hands‑on experience in single‑ and three‑phase electrics, and strong practical knowledge of AC and DC control systems.
• Proven experience maintaining and repairing BESS fleets (Battery Energy Storage Systems) and associated electrical equipment — skilled at fault diagnosis, testing and delivering robust repairs.
• Must hold a full, clean and valid driving license
• Technically curious and quick to learn: comfortable reading schematics, understanding new products and applications, and applying technical knowledge across diverse systems.
• Excellent interpersonal skills with clear, professional communication; adept at building relationships and engaging stakeholders at all levels (internal and external) to achieve safe, timely outcomes.
• Safety‑first mindset with up‑to‑date working practices and regulatory compliance; competent in MS Office and PC tools, flexible and willing to travel as required.

Here’s what you’ll get

• A highly competitive salary and comprehensive benefits package, including a generous pension plan, annual bonus opportunities, and Life Assurance.
• Annual leave allowance of 30 days plus 3 public holidays, with the flexibility to buy or sell additional days to suit your lifestyle
• Opportunity for overtime based on business demand
• Ongoing training and personalised development pathways to help you grow your skills and progress in your career
• Paid volunteering days, giving you the chance to make a positive impact in your local community
• Access to our Employee Assistance Programme, offering confidential support and resources to promote your wellbeing and a healthy work–life balance

Our people are can‑do, positive, resilient and persistent. If that feels like you, apply now and build your career with the people bringing energy to the world.