The news was posted to Twitter earlier today:
I figured now is the right time to say this, I will be working at Apple starting later this year.
Winocm isn't the first one from the jailbreak community to make the move to Apple. Comex, the hacker behind the Spirit jailbreak and JailbreakMe 2.0, also took an internship at Apple.
At this point it's unclear what exactly winocm will be doing at the company and it's unlikely he will be able to reveal those details.