Scientific opinion is divided on the subject, although it's not a 50/50 divide. But I don't think that using Einstein in particular as an example is fair. "The Lord God is subtle, but malicious he is not," for example, shouldn't be taken as a literal acceptance that God exists -- and anyway, even if it were it's a bit of a dodgy quote to cite because there Einstein was referring to his distaste for Quantum Mechanics as a theory, and he's been largely shown to be wrong in that regard.
Still, there are scientists, including a couple of my own friends, who are religious. I don't think that's going to change any time soon. Since, by and large, Science doesn't really say anything about the subject, this is unsurprising. I don't think its being unable to explain everything is a very good justification for allowing a "God of the gaps", but there we are. No need to be a snob about it one way or the other.