Test Technician

Woojin IS America, Inc. (WISA), headquartered in Santa Fe Springs, CA, is a fast-growing manufacturer specializing in electric equipment for rolling stock and light rail vehicles. We proudly serve North American customers with advanced technologies that deliver safe, reliable, and long-lasting transportation equipment.

This is a classification performing skilled, repair and modification on all electronic and electro-mechanical systems and components found in transit light and heavy rail vehicles. Incumbents work independently according to accepted standards of the trade, supervisory direction, Company established procedures, practices, and specifications. Incumbents may also provide on-site trouble assessment, response and adjustment of revenue vehicles. This class of technicians work specifically to test, troubleshoot, and repair electro-mechanical and electronic systems and components found on transit revenue vehicles.

Under general supervision, performs skilled, test, troubleshooting, repair, and modification to a variety of electronic and electro-mechanical equipment and components found in heavy and light rail vehicles; performs related work as assigned.

• Following a pre-established schedule, testing and adjustment of electronic, electrical and mechanical systems found on transit vehicles. Including those associated with propulsion, train control, pneumatic supply and brake control, air conditioning, annunciation, communications, door control, lighting, and auxiliary electrical supply.
• Troubleshoots and performs primary performance verification on such systems, removing and replacing components as required to achieve manufacturer specifications.
• Records all findings accurately in provided Test Reports, for inclusion into Car History Books that follow each completed vehicle.
• Performs modifications to rail vehicle electronic and electro-mechanical systems, as directed by engineering and supervisory staff.
• Works with engineering and other production staff regarding modifications.
• Uses diagnostic test equipment and precision measuring devices in the course of the work; may fabricate new testing equipment as required for use on new components and systems.
• Performs secondary dismantling and repair of electronic and electro-mechanical systems.
• Verifies performance of new or modified systems or equipment.
• Works closely with transit vehicle mechanics in troubleshooting problems and performing primary repairs.
• Reads and interprets diagrams, engineering drawings, manuals, schematics and work orders.
• Measures, tests and inspects completed work to confirm adherence to specifications.
• Documents work performed and parts and materials used; follows specified safety procedures.

• 2+ yrs experience, desired in light rail or Aviation environment.
• Experience in low and high voltage (VDC), medium voltage (VAC) and relay logic.
• Experience in the use of test related equipment i.e., digital multi meters, pneumatic gauges, current probes etc….
• Must own and maintain a basic hand tool set.
• Experience in precision measuring equipment i.e., caliper, micrometer, pie tape, etc….
• Experience in electrical crimp and mechanical torque techniques.
• Must have experience working within and maintaining a safe work environment.
• Experience with working in diverse and busy team environments.
• Must speak, read and write English.
• High School graduate or equivalent.
• College/Technical trade education is preferred.
• Ability to read drawings, blueprints and diagrams.
• Strong analytical and problem-solving skills.
• Ability to prioritize and work well under pressure and against deadlines.
• Excellent interpersonal skills in a team environment.
• Must be able to…