As an extruder, you operate specialized machinery used in the manufacture of thermoplastic materials, used in turn for purposes like car and plane manufacture. Your duties include mixing materials, inputting settings, and ensuring a safe and successful extrusion process. You also perform routine maintenance on equipment, and report any mechanical degradation or breakage, especially where it may affect safe operation. A career as an extruder does not require you have formal qualifications or a college degree, but you should have a high school diploma or GED certificate, mechanical aptitude, and a strong eye for detail. Skills and experience gained at a trade school or vocational program will set you ahead of other candidates and help you gather professional contacts.