job experence is imp than degree.. i have masters degree that my job requires and i work under a guy who has an undergrad degree in music..not even related to our job. has he knows how to do his job and has years of experence.. if i go tell him i want to be his boss cuz i have a higher degree what do you think he's gonna tell me... right, u got it.. . you can take the job, get some experence and take classes at the same time..  if u really want masters.. but if ur degree is in science , if they're going to pay ur full tution and u have a secure job after ur masters, then go for masters.. but if you're going to be back on job market after 2 years, and hoping someone to do h1b for you, then go for job my friend.. good luck