Computer programmers write, or code, the programs that tell computers what to do. This is accomplished by converting the software program, designed by software engineers, into a series of instructions a computer can follow. The job is multifaceted in that it entails creating, adapting, modifying, troubleshooting and maintaining programs. Although having a bachelor's or master's degree is most often required for computer programming jobs, those with related work experience may only need a certificate or associate's degree. Depending on where they work, programmers may also need to seek certification.