Just a warning that, at least in the UK, I've heard that many companies do want you to know a list of quite specific programming languages and advertise for a programmer that does X language with Y years experience in it, rather than going after the computational knowledge side of things. So, you know, just check what you're going for first if you're still at the making decisions about what to learn stage.

Can't speak for Google though. Just if you were thinking in general terms.

As a software engineer in the UK - in my experience, the companies who want you to list very specific programming languages aren't worth working for. If they don't/can't understand that programming experience is transferable between languages, they probably aren't going to respect you for your skills either.

That happens enough in the U.S. as well. More often as many positions are being actively driven/searched by consulting companies (temp/placement agencies for IT/Software).