Modern languages and frameworks for developing web applications
Very popular languages that are standard in modern back-end web development are PHP, SQL and NodeJS. We use them for rendering pages on the server and delivering the content to the user's browser depending on the query. We developed web shops that hold more than 30.000 items in the database and deliver fast response to the user with every item holding different types of information including titles, text description, serial numbers, attributes, prices and pictures.
These technologies also have frameworks which we use, such as Laravel, for creating complex systems and web applications.