A computer programmer is someone who writes the code for software applications and operating systems. They take designs created by software developers and engineers and convert the designs into sets of instructions that computers can follow. Computer programmers can develop mobile apps, video games, websites, social media platforms and more. Programmers also test software to ensure it follows best practices in design, performance, and security.
Computer programmers can specialize in one area of programming or be a generalist who writes codes for many different types of software.