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Field Service Technician - Greater London. Salary:£61,000 per annum Hours: 48 per week (Mon-Thu or Fri-Mon) Benefits: Competitive pension • Healthcare • Regular social events • 33 days holiday Join Our Team as a Field Service Technician. Are you an experienced technician with a passion for keeping rail operations safe, reliable, and performing at their best? Do you enjoy problem-solving on the move, working across different environments, and taking ownership of safety-critical tasks? We're looking for a dedicated Field Service Technician to support both depot-based and on-board engineering activities. This is a hands-on role where no two days are the same from fault-finding on the network to carrying out maintenance and servicing in the depot. With an excellent salary, strong benefits, and long-term career stability, this is an ideal opportunity for someone who thrives in a fast-paced, safety-focused engineering environment. Purpose of the Role. You will be responsible for inspecting, maintaining, and repairing a wide range of mechanical and electrical systems across the fleet. Working both independently and as part of a wider engineering team, you'll ensure all work meets strict rail safety standards and operational requirements. Duties may evolve as operational needs change, and flexibility is essential. Key Responsibilities. On-Board Duties. Prepare and dispose of trains before and after service.Carry out fuelling, water checks, and basic servicing.Safely dispatch trains from the depot.Monitor train performance throughout operation.Attend and rectify defects during service.Complete turn-round servicing between outward and return journeys.Perform end-of-day d