I have been working as a developer since my fourth year of university until now. I'm getting my master's degree next year (in math modeling). I've worked for the same company all the time, first on .Net, then on Android, and now .Net again.

It seems I'm doing quite well in my current company. Some of my coursemates have tried to work in my company, but they failed after some time. This (and not only this) makes me think that I'm really worth something.

But we're working on a very specific project. I was wondering if I am good enough and if I can make it in another company. I love my current job, but sometimes I have a feeling that I'm not moving on.

So, is it possible to keep improving when working at the same company with the same technology and at similar tasks? I know that most of the programmers go from one place to another very frequently. Is it the only way?