Ability to: Test and repair electrical and electronic equipment and installations; Work independently and safely with 750 volt DC and 11,000 - 22,000 volts AC power; Perform work in compliance with safety rules and regulations; Operate welding equipment used in electrical work; Read and interpret construction plans, specification and electronic schematics, diagrams, and maintenance manuals; Estimate costs for time, labor and materials; Maintain records; Prepare written reports, document defects and repairs on inspection forms, work orders, or designated computer programs; Perform computer-related functions that allow for data input and retrieval; Assign and review the work of and train others; Learn and stay current on all new technologies introduced into the transit industry as it relates to electrified rail; Effectively read, understand, and use technical information found in repair manuals, service change bulletins, and applicable technical documents, including parts and supply manuals; Establish and maintain effective relations with those encountered in day-to-day performance of tasks. Inspects, adjusts and/or repairs voltage in the line, battery systems, circuit breakers, relays, and connections; Tests, maintains and overhauls rectifiers; Repairs fan motors and blower motors; Repairs air blast breakers and cathode breakers; Repairs electronic circuit boards; Operates welding equipment; Keeps tools and equipment clean and in good condition; Keeps substations clean; Drives trucks; May provide lead supervision and assist in training other workers; Prepares written reports, documents defects and repairs on inspection forms, work orders or designated computer programs; Operates computer for related data input and retrieval; Performs related work as required.