Web development - Role
Back-end developer
A developer who builds the server-side logic, data handling and services behind an application
What's it for?
Builds the hidden parts of software that store information, apply rules and support what users see.
For example…
A back-end developer writes the service that calculates delivery prices and exposes them to the website through an API
When checkout slows down, the back-end developer traces a database query and rewrites it so orders save faster.