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I don't think 110 is low for a front-end engineer. Whether or not you are underpaid is more of a question on how much money you need to be happy. Will increasing your pay by 30k per year significantly change your current lifestyle? You should examine if you are happy at your job first, understand how different your life might be if you added 1200 more per month, and determine whether or not that increase will make you happy?

I've always been a believer that if you are truly happy in your work then the pay will not matter much. If you are unhappy in what you do a little more will only make you happy for a short while.