<p>That is a really bad idea to withhold information from your employer like that. First, why spend the time getting a PhD just to go and get a job that a BS holder could use? That is a huge waste of time. Second, why start out your employment relationship with a half-truth?</p>
<p>Also, unless you are doing a job that deals personally with the customers like consulting, then having Dr. in front of your name is usually more of an ego thing than an actual business advantage. In technical circles, you will be judged more by what you do than what your title is most of the time.</p>