A freelance developer performs software programming and web development duties for a client or clients on a contract basis. These responsibilities may include helping build a website, working on design or user experience functionality, and developing code. A freelance developer often works as part of a larger team of developers, programmers, and engineers on a specific project. The qualifications you need for this position include a bachelor’s degree in computer science or a related field, technical skills, and knowledge of one or more programming languages.