I work for a company which for the longest time did not have a consumer facing application. That meant that frontend was a second thought and that they have never hired for skill in it. I was not tested for it in my interview with them as while they wanted the skill, they had nobody qualified to test it.
Things have changed to the point that a lot of applications need frontend work, so in my 6 months here, that stuff has been my entire day. It has even got to the point where most of the backend Java devs are being used to write frontend JS code and ship it, even though they admit it is garbage.
By the end of my 9 month initial contract, I may get only 5-6 commits of substantial backend code despite wanting to be a full stack dev. The backend work I am getting is only when I deliberately slow down my frontend work to try and be equally unproductive as the rest (as otherwise I don't even get to work with the API calls), so they may be giving me backend work which is easier. How screwed am I if I need to search for a job in a few months?