High Voltage Technician

Based in Rainham, this full-time High Voltage Technician role with Pertemps Thames Water carries a salary up to £55,000, dependent on experience. You will support the Senior Authorised Person (SAP) in maintaining critical infrastructure across London. Daily tasks involve hands-on fault-finding, repair, and scheduled upkeep of HV and primary LV systems, ensuring operational safety and compliance. The position suits a qualified engineer with strong diagnostic skills and a meticulous approach to safety protocols.

You will cover multiple sites, providing variety and technical challenges. This contract offers a genuine chance to contribute to essential water services. Apply if you hold relevant HV qualifications and seek a responsible, technically demanding position. 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 hands-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.

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

• 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.

• 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…