CNC (Computer Numerical Control) Programmer develops instructions necessary to run the computer numerically controlled (CNC) machines primarily used in the manufacturing industry. An affinity for computers and a familiarity with equipment like drills, lathes, and presses is necessary for success in this career field. They are responsible for reading and interpreting technical blueprints, inputting the design specifications, adjusting the machine cutting paths, and performing quality checks on the final product. CNC Programmers also perform routine machine maintenance and troubleshoot any issues that arise during the manufacturing process. It is important for CNC programmers to have skills in communication, critical-thinking and problem solving, and systems analysis and mathematical abilities, and to have knowledge of computer-aided design and computer-aided manufacturing software like MasterCAM. Overtime work is common, and safety precautions must be observed to prevent injuries when working with the high-speed machines.