[kls]

Do you have any experience with jQuery/backbone/require or Dojo writing large apps both of those paths pay very well. with 5-6 years and some big JavaScript apps, you are fairly valuable, Ext lost some popularity when they pulled the licensing switcharoo, which put a bad taste in a lot of peoples mouth. That being said, I would look at you as a senior developer (assuming that we walked through your MICO project, and I liked what I saw and that I did not see any huge coding no-no's). I would offer you 100k knowing full well that I would be willing to go to 120k if I think you are one of the best developers that I have seen AKA a 10xer.

Here are the facts:

You have skills in an extremely hot market.

Most JS developers know jQuery which != JS. Ext is a larger framework for building large JS apps, it is on par with Dojo. Dojo developers can command 140k. I could retool you to Dojo or a jQuery/Backbone/Require stack in a few weeks. Especially if I have an existing team there to support your transition.

You have an open code base that I can review. You built it on your own initiative, this is a strong indicator of passion, which is important.

Based on that, if you receive an offer under 90k anywhere on the western or eastern seaboard your are getting low balled. If you are in the midwest I would expect it to be at lest 90k but it may be a little lower.