httpwebwitch - 9:09 pm on Apr 7, 2012 (gmt 0)
Oh CrazyPanda, it varies so much. Not only does it depend what you mean by northeast (NYC? Bangor? Concord?) but very much what company you get in with, what product they produce, and your role in the company.
When I say it varies, I mean really you can't say whether 6 years of front-end experience will earn $25K, or $95K.
Not only that but as a front-end UI designer, you might have a day job hupping together HTML layouts, but you can also easily pick up freelance jobs on the side which are more lucrative & are taxed differently.
You can get more specific answers by contacting a recruiting agency from the region you're looking for.