Where can I find a site where they assemble a team to develop projects on different languages?

Question

Career in IT

to gain experience and/or for money. But not freelancing. I'm looking not just to complete the order for money and that's it, but to be able to work further with a small number of people for the benefit of the project.
Thanks in advance. If there is something similar to what I wrote - throw links

Answer 1

github, gitlab, bitbucket

Answer 2

you go to https://planeta.ru/ or other crowdfunding services and look at projects there. then you knock on the contacts and find out if they need a programmer.