Ask HN: Which companies hire from their Open source project contributors list?

Hi all, I have be committed to open source software development since a long time now, and now I am in a stage where I have to think about my bread and butter.

A lot of silicon valley companies have dedicated open source projects.

So I was looking for open source projects wherein if you contribute enough significant patches to that project, you would land a placement in that company who owns the project.

Although traditional "apply via resume" (and referral) is always there, I wanted to try something else, as I neither have a good resume (poor college grades) and nor any refferals.

So are there any such companies who actively hire from their github project contributors list ?