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I'm in a tough situation, since I'm a UX Designer who has a tech background too.
I create prototypes through code which allow them to be as accurate to the real finished product. What I do is rare and not many people do what I do and have been told by numerous people from numerous companies that I'm considered a unicorn and am in high demand.
I tried looking for data online to see if my suspicions are valid, but I can't find anything. What should I do and how do I approach my employers and tell them that I feel like I'm not paid enough due to my unusual skill set?