Hi Jack,
As the Apache Software Foundation principles and values include
'comfortable technical discussion', I think, every Apache project should be
welcoming and friendly to newcomers. I guess some incubating projects may
need volunteers more than top-level projects, but I just guessing here.
If
Hello Jack,
Welcome to the Apache Software Foundation.
There is a large number of Apache Open Source projects written in Java and
also more than a dozen written in C:
https://projects.apache.org/projects.html?language
Go though the list, visit the websites of the projects which use your
language
