Yes, here in SF it is much the same. However there is also the "full-stack" developer that has come to be in high demand and ranks somewhere in the middle in te

Yes, here in SF it is much the same. However there is also the "full-stack" developer that has come to be in high demand and ranks somewhere in the middle in terms of salary. As for why it is this way I think it's just simple economics. There is more "supply" of front-end devs than back-end which in turn drives the salary of the latter upwards.