An interview is just a test. Like any tests there are false positives and false negatives. There is a trade off between having more false positives/negatives and generally when it comes to hiring, a false positive is much more expensive than a false negative so many interview processes will end up rejecting good developers.

An interview can’t tell the company whether or not you are a good developer or a bad one. It can only say you can demonstrate certain skills to a certain level under interview conditions which means you are pretty likely to be a good developer.

It’s tough when you get rejections but because of the above factors, unfortunately it’s not enough to be a good developer to pass interviews a lot of the time. You also have to be good at interviewing. The good news is like any skill it can be practiced and if you’re already a good developer it shouldn’t really take much effort to become good at interviewing but it does require practice.

That’s my take anyway. Keep your head up, practice interviewing and you’ll be alright.