Week of coding effort wasted after a successful demo I was asked to design a data import tool (trivial ETL) and a web-UI with two Views for browsing the data. Even though the problem was solved to 100%, and I've caught all the "gotchas" in advance, and demoed/explained the design and implementation details, I got no offer. The interviewers were sending very positive messages starting the phone screening coding problem; as well as during the onsite demo-and-skills probing session. This, however, turned out to be either very fake or hypocritical as in "assessment against hidden criteria". I don't recommend anyone spend even an hour on the home assignment. This company is essentially prototyping/stealing your code.