Although a full -stack developer can develop the architecture, write the client-side and server-side code of an application, they ' re not almighty. You will need at least a designer and a QA specialist. In principle, a full-stack developer can handle testing, but it's hardly practical wasting their time on it. To create an MVP, in most cases, the above-mentioned team of three specialists will be enough , but a team of a full -stack developer and specialists in specific programming areas is more effective, especially on large projects.