Apart from contributing to well known open source projects or starting your own, you could also try to write a plugin for some product that has a large community (e.g. Jenkins) and/or marketplace (Atlassian's one,…
Apart from contributing to well known open source projects or starting your own, you could also try to write a plugin for some product that has a large community (e.g. Jenkins) and/or marketplace (Atlassian's one,…