I was hired as a wpf dev for a large scale project and I was told that the backend is perfectly complete and that I am able to work right away, then after I started working, I noticed that every request I sent was returning a 500 internal error, I thought it was a problem on my end, but later I found out that they didn't even implement the api yet, it was just a "reference" for devs, which basically means that I should work and give them a perfectly functional app without testing anything at all.