Waterloo Auto Service. 2589 E Waterloo Road Edmond, OK 73034 405-844-1144. Waterloo Auto Service has job openings available for a General Service Technician. We're looking for honest, dedicated, customer-service oriented people to join our team at Edmond, OK. The General Service Technician is an entry-level position that is responsible for providing general services for vehicle maintenance and repair, such as oil changes and tire rotations. You w...