[bilg21]

Isn't that why you have titles such as Software Engineer, Developer, Programmer? Software Engineer should have the engineering background and tackles hard problems whereas Developers and Programmers focus on products and features.

[azhenley]

All of these terms are used mostly interchangeably, and it just depends on what company you are at. For example, Microsoft calls them all SDEs (Software Development Engineer) and Google calls them Software Engineers.

[pjmlp]

In many countries it is illegal to do so unless those people are actual engineers with accredited degree by the engineers' college.