Senior Project Engineer.
Service and Prototype Engineer (Powertrain)
Service Parts Engineer. A Saturn job classification whose responsibilities include: ensuring a complete service parts list for past, current, & future model years, coordinating part changes between Engineering and SSPO, developing the catalog, & developing new product parts training.
Society of Petroleum Engineers
Society of Plastics Engineers.
Surface & Prototype Engineering. The term typically used for surface data from Design Center.