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High Voltage Technician

Job in City Of London, Central London, Greater London, England, UK
Listing for: Thames Water Utilities Limited
Full Time position
Listed on 2026-09-15
Job specializations:
  • Trades / Skilled Labor
    Maintenance Technician / Mechanic, Electrician/ Electrician Installation, Field/Service Technician
Salary/Wage Range or Industry Benchmark: 33000 - 55000 GBP Yearly GBP 33000.00 55000.00 YEAR
Job Description & How to Apply Below
Location: City Of London

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.,

+ 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.

Requirements:
Electrical qualifications, fault-finding expertise, and a valid UK driving licence.

  • + 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.

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 difference and getting us to where we want to be in the years and decades to come.

Working

at Thames Water

Thames Water is a unique, rewarding, and diverse place to work, where every day you can make a difference, yet no day is the same. As part of our family, you'll enjoy meaningful career opportunities, flexible working arrangements and excellent benefits.

If you're looking for a sustainable and successful career where you can make a daily difference to millions of people's lives while helping to protect the world of water for future generations, we'll be here to support you every step of the way. Together, we can build a better future for our customers, our region, and our planet.

Real purpose, real support, real opportunities.

We're committed to being a great, diverse, and inclusive place to work. We welcome applications from everyone and want to ensure you feel supported throughout the recruitment process. If you need any adjustments, whether that's extra time, accessible formats, or anything else, just let us know. We're here to help and support.

When a crisis happens, we all rally around to support our customers. As part of Team Thames, you'll have the opportunity to sign up to support our customers on the frontline as an ambassador. Full training will be given for what is undoubtedly…

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