What is the difference between a frontend, backend, and full-stack developer? — answered by Engineer Saeed Baatiah
A frontend developer builds what the user sees and touches: interfaces, buttons, speed on mobile. A backend developer builds what is invisible: databases, sign-in, payments, and business rules. A full-stack developer covers both, which suits small and mid-sized projects because it removes the coordination overhead between two people and shortens the timeline. On large projects specialisation is preferable, because depth matters more than breadth.