I applied through Indeed and a few weeks later got an email asking me to come take a technical exam, this was not an interview. They told me to ring the doorbell, so I did and someone took me to a desk with a laptop and mouse in a dark corner of the office which was pretty much empty. The laptop had eclipse open with a project started and some interfaces you must implement to convert a fixed column .dat file into a comma separated value .csv file. It wasn't very difficult but if you haven't actually implement something like that before then the hour might be tight.