At such a big company, I doubt anyone could get a job just working on algorithms coming out of undergrad. Maybe if you had a PhD in a relevant field I could see it. I'd bet almost everyone at Google is extremely good with algorithms when compared to the whole population of developers so I really don't see them giving this kind of sought after position to someone so junior. There's just too much risk for the managers to give it to someone who's still unproven.
