High Voltage Technician

Thames Water • Rainham, England, United Kingdom • Posted June 18, 2026

Location Rainham, England
Job Type full time
Category Other Installation, Maintenance, and Repair Occupations
Posted June 18, 2026
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.

What you’ll be doing as a High Voltage Technician
  • 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 ...

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