What technology to choose for the back-end of a mobile application?

Question

Backend

For the back of a mobile application, where there will be mainly I / O , which technology is more suitable based on the speed of development.
PS I'm not a developer myself.

Answer 1

A lot of swindlers will tell you how cool it is to do this or that technology, choose a developing sector where there is a demand there and a competitive price for developers.

Answer 2

None
Look for a sane developer

Answer 3

For a simple backend, you can try firebase .