Date: 7/5/2018. Location: Livermore, CA. Wanted. A Service Technician helps troubleshoot, diagnose and sell repairs of plumbing and heating problems in residential homes and commercial businesses. The basic function of the Service Technician is to assemble, install, repair pipes, fittings, and fixtures of heating, water, drainage systems, etc. Physical Requirements. Able to stand, sit, walk, crouch and bend. Able to carry items and lift up to 30 ...