Super interesting to see the pay differences between "programmer" vs "developer" vs "engineer". With the other titles there is either an inference of managemen

Super interesting to see the pay differences between "programmer" vs "developer" vs "engineer". With the other titles there is either an inference of management/hierarchy (manager, lead) or just a different or isolated work (tester, analyst). Do people have very defined definitions of the differences between programmer vs developer vs engineer? I've just used engineer as the generic title.