A full stack developer is a software professional skilled in both frontend (user interface) and backend (server-side) development, able to work on all layers of a web application. This includes database management, server configuration, API development, and user interface design. Full stack developers understand how different components work together and can build complete applications independently or contribute to any part of a project. The term "stack" refers to the combination of technologies used—for example, the MEAN stack (MongoDB, Express, Angular, Node.js) or LAMP stack (Linux, Apache, MySQL, PHP). For municipal IT departments, full stack developers provide versatility, though specialists in specific areas may be needed for complex projects. As web technologies evolve, full stack developers must continuously learn new tools and frameworks to remain current.