I use to work with a lot of people from all around the world, so i can say from the very first meeting if you are a good dev or not, and darn ! i hate the self confident devs who think they are the best, especially when they are junior !
I want to tell them : WAKE UP ! YOU ARE NOT THE ONLY ONE IN THE WORLD !!

"I know how to code in OOP! I'm an expert!"

Makes we want to punch them in the face for their arrogance.

@JMoodyFWD totally !

@Torbuntu agree with that totally. One of my dev standards prohibits pulling rank, because all input is valuable. I've fired someone before for pulling rank on a junior, and I'm more than happy to do it again.

@Torbuntu i wrote a 800 reply, gone because i miss clicked, but, yeah, you are 100% right.

@JMoodyFWD elitism is so bad ! (i am not an anarchist)

Can you share your techniques on how to determine if a coder is good or not from one meeting? If you're talking about personality then first impressions are very important but sometimes even the more gifted do weird things. I'm genuinely interested in the cues you use to determine if someone is technically able or not?

@ymas i have some questions usually, based on the resume (which is almost lies), i learned from experience that a backend dev working on windows is an average dev, so i always for their operating system, the best guys i worked with had mac windows and linux, usually linux and windows as dual boot and mac as VM.

Then i always ask about previous experience, as they tend to list languages they worked with even 10 years ago.

I also ask about the language they feel the most comftable with.

With these, i can determine if he is worth testing or not, as i always go for a test period, where they can reveal their real potential.

I don't want to sound racist or anything like that, but i don't even consider pakistanese or indian devs, there is too much scam around them, once i was interviewing an indian dev, he wad googling my questions to know what i was talking about !