<p>Yes for physics, no in math. Science department sometimes hire college graduates as lab assistants. There’s no labs in math and hence no need for cheap labor. </p>
<p>In addition, after an undergraduate math major, you are still two years of full-time study away from being able to participate in research. In other words, you’d be useless to a math professor even if you offered to work for free. </p>
<p>But why wouldn’t you go to graduate school if you want to have an academic career? Science students are paid to go to graduate school and your stipend might even be higher than your salary as a full-time lab assistant.</p>