Computer programmers write code for software, websites, and other digital tools. They help turn design ideas into working programs and may update older systems to keep them running well. Their work often includes testing code, finding and fixing errors, and making changes based on feedback. Programmers may also review technical requirements, create simple documentation, and work with other developers, analysts, or clients to solve problems. Depending on the workplace, they may focus on one part of a larger system or work on several tasks during the same project. In many settings, they need to stay current with new programming languages, tools, and methods.