High Voltage Technician

Join our dedicated high-voltage maintenance team, where you'll play a vital role in ensuring the safe and efficient operation of critical infrastructure. Working alongside the Senior Authorised Person (SAP), you’ll tackle hand‑on fault‑finding, maintenance, and repairs of HV and LV equipment. Covering several dynamic sites across London, this role offers variety, technical challenges, and the chance to make a tangible impact every day.

• As a High Voltage Technician, you'll take on the critical responsibility of maintaining and repairing high-voltage equipment across various Thames Water sites. This role ensures the smooth operation of essential infrastructure.
• Inspect and maintain HV and primary LV equipment to ensure operational safety and efficiency.
• Diagnose and resolve technical faults promptly, keeping accurate compliance records.
• Supervise contractors and team members during maintenance, ensuring adherence to safety and quality standards.
• Undertake SAP (Senior Authorised Person) training and uphold strict electrical safety rules.
• Keep tools, equipment, and systems in top operational condition.
• Travel extensively to multiple sites, providing technical support and overseeing SCADA system operations.

Riverside STW – RM13 8QS

Due to the nature of this role, you can be based on a number of our sites depending on your location.

45 hours per week, Monday to Friday (07:30 am to 5:00 pm). Opportunities for overtime may be available.

Electrical qualifications, fault‑finding expertise, and a valid UK driving licence.

All PPE, tools, a company van and a fuel card are provided.

• Formal electrical trade qualifications or equivalent industrial/utility experience in HV systems.
• A mechanical background and being skilled in electrical work would be beneficial.
• Proficiency in electrical maintenance, fault‑finding, and understanding of electrical safety rules.
• 18th Edition Wiring Regulations certification (or 17th Edition with a willingness to upgrade).
• AP15 High Voltage qualification (ideal) or willingness to train.
• A great team player with excellent collaboration and interpersonal skills, and the ability to work with minimal supervision, is essential.
• Basic IT proficiency for operational tasks and record‑keeping.
• Full, valid UK driving licence to travel across the Thames Water sites.

• Competitive salary up to £55,000 per annum, depending on experience and qualifications.
• Annual Leave: 24 days holiday per year, increasing to 28 with the length of service. (plus bank holidays.
• Company Van and PPE are provided.
• This role can offer a technically interesting career, development, progression and the responsibility of mentoring colleagues and trainees.
• Work as part of a diligent and dynamic team and experience the beautiful countryside surrounding the sites you’ll be travelling to daily.
• A great opportunity to be trained as a senior authorised person.
• Access to lots of benefits to help you take care of your and your family’s health and well-being, and your finances – from annual health MOTs and access to physiotherapy and counselling to Cycle to Work schemes, shopping vouchers and life assurance.

Find out more about our benefits and perks (Please note different T&Cs apply if on secondment)

We’re the UK’s largest water and wastewater company, with more than 16 million customers relying on us every day to supply water for their taps and toilets. We want to build a better future for all, helping our customers, communities, people, and the planet to thrive. It’s a big job, and we’ve got a long way to go, so we need help from passionate and skilled people, committed to making a…