Assemblers usually work on times that move past their work stations automatically on conveyors.
Applicants need specialized training for some precision assembly jobs. For example, employers may require that applicants for electrical or electronic assembler jobs be technical school graduates or have equivalent military training. Most precision assemblers are promoted from the ranks of workers in lesser skilled jobs in the same establishment. The ability to do accurate work at a rapid pace is a key job requirement. Those with a background in math, science, and computers may advance to programmers or operators of more highly automated production equipment.