Benefits usually include paid vacations, holidays, and sick leave, as well as medical, dental, and vision insurance, and retirement plans. Many employers pay tuition for employees who take additional job related courses. For some jobs, a knowledge of computer simulation techniques is valuable. Both mathematical and mechanical aptitudes are essential to success in this occupation. Applicants are generally required to pass a physical examination.
Some employers require a drug test as a condition of employment.
Handicaps which do not affect job performance are not considered disqualifying. Good color vision is needed in laboratory work. Security clearances may be required when working on some highly classified projects. High school students considering this occupation should take courses in higher mathematics such as geometry, trigonometry, calculus, the physical sciences, machine shop, and English. Drafting and mechanical drawing skills must also be developed.