That being said, at least in the US, employment is at-will, and companies can fire you for pretty much any reason. This is not the case in the Netherlands (whe

That being said, at least in the US, employment is at-will, and companies can fire you for pretty much any reason. This is not the case in the Netherlands (where the OP is). Employees are fairly well protected here, apart from the first month or months. That's the "probation period" (proeftijd) when an employer can fire you for any reason. It is also likely that initially you are employed for one year, which means that the company is free to fire you after that year (it's not technically firing of course, just a contract that ends). After that, people usually get a permanent contract and firing gets more difficult.