[cup-of-tea]

I wonder how many are "web developers". They seem to have broken down that category into three or four possibly overlapping subsets. "Front-end developer" and "back-end developer" should be mutually exclusive because people in the intersection would be "full-stack developers". But if that were the case then more than 95% are web developers.

[frou_dh]

Backend does not necessarily mean web technology. I'm reminded of an oft-lost distinction between "The (Inter)net" and "The Web".

[cup-of-tea]

I've not heard of other network services using the term "backend". Is writing a mail server "back end" development?

[frou_dh]

Yes. A rather uninspiring appraisal of cyberspace — web browsing & emailing — though.

[pjmlp]

Yeah, they did not even considered native development.