Machine operators, also knows as machinists or tool and die makers, work with heavy machinery from setup to operation. Machine operators might work with computer-controlled equipment or more mechanically based machines to make sure they are set up properly, working well, and producing quality product. Machine operators make sure their machines are working at full capacity, are stocked with needed materials, well-maintained and perform periodic checks on output.
Machine operators may work on many different machines, or specialize on one complex machine. They are builders, fabricators, mechanics, craftsmen and quality assurance all wrapped into one.