I use good old clippers, $18 from big W, will last many more years. No plastic (ie No 3) on the end gives a pretty close shave, leaves 1mm stubble. Mows my face in about 1 minute, looks pretty neat without being clean shaven, and I can skip a few days but if you did it every day it might be neat enough.
The key is to go to your job interview with a beard / stubble, and maintain. If you start clean shaven you set up expectations

<--- that is not me by the way