Concept Unlimited Inc.- Columbia, SC. Job Description. CNC PROGRAMMER and Operator. Concept Unlimited, Inc. is a leading national sign, canopy, ATM kiosk, and ATM enhancements manufacturing company headquartered in Columbia, SC. We are currently looking to add a full-time CNC Programmer/ Operator. This position is a physical position in a fast-paced manufacturing warehouse environment and requires being on your feet for extended periods. Programm...