The Light Rail Systems Maintenance Technician will have ability to comprehend the skilled technical duties involved in performing inspections, preventative and corrective maintenance, and troubleshooting on all mechanical systems for the wayside and LRVs in area of assignment; ensures all LRVs and related equipment on the right-of-way are safe and ready at all times; responsible for all repairs, modifications, and rebuilding of LRV systems and components, inspection, maintenance, and repair including making repairs to light rail vehicles and their systems; adjusts motors, generators, brake systems, and related components; inspects, diagnoses, and repairs a variety of systems associated with light rail vehicles including LRV signals, tracks and switch machines, overhead contact system, traction power substations, and a variety of shop tools and equipment. Fabricates tools, parts, components, and systems for LRV, Traction Power Sub-stations (TPSS), Overhead Contact System (OCS), Right of Way (ROW), Train Wayside Control (TWC), signals, signage, safety equipment, security and fire alarm equipment; maintains equipment as needed; performs regular inspections of the equipment and systems used and takes appropriate action as needed; audits and tracks inventory of parts through the MMIS, researches and contacts manufacturer's and vendors to ensure low costs for replacement parts and provides the bid information to the Contracts Department as necessary; audits and ensures all chemicals that enter the maintenance facility are documented and have the required records on file.