You’re not but it already reduces the sample size by a lot. There is no 100% effective way to detect liars. I’ve been a hiring manager in multiple companies (in

You’re not but it already reduces the sample size by a lot. There is no 100% effective way to detect liars. I’ve been a hiring manager in multiple companies (including currently) and fortunately for me they were so far rare (maybe because Germany isn’t attractive enough as a job market for programmers to get the bulk of people putting a lot of effort into fraudulently getting a job). Either way it is customary to start new hires with a 6 month probation, and their long term contract only kicks in after that. That’s long enough to detect if someone is incompetent (I’ve had to fire people during their probation when finding out they weren’t actually capable altho I don’t think they outright lied).