In December, employee-reviews site Glassdoor published a list of the 50 best companies to work for.The top tech company? Google.Likewise, Google was No. 1 on Fortune's 2015 list of the 100 best companies to work for.And yet when Google offered a recent grad from a top CS program a job, the new grad said no.That despite monthly compensation of $9,000, including a housing stipend.Why?In an email, the engineer gave us four reasons: "Lower pay after tax. Housing stipend is taxed more, and several places pay more than Google. That being said, Google is still very competitive. Google's full ti