A Full-Stack developer is a professional responsible for working on both front-end and back-end development processes. They design, develop, and maintain fully-fledged and functioning platforms with databases or servers. These servers do not need other third-party applications to build an entire system from scratch. Full-stack developers design and create websites and applications for various platforms. A full-stack developer's job description might include the following: Develop and maintain web services and interfaces. Contribute to front-end and back-end development processes.