alrighty, my thoughts are, before moving on the masters, why not get some work experience first with your bachelor degree? Working experience can provide you with knowledge a formal education may not be able to give. BEsides, most employers now would prefer to emply people with working experience. Even if you have a master's degree, it does not mean that right away you'll get a high sallary.

How it works is that as you work, when you furthur your studies while you work, it is an opportunity for you to get a promotion. therefore it is more advisable to start working first and then only get your masters if it is able to get you a promotion.

also, even if you come out as an engineer, as you continue on the rat race, you may not remain an engineer. you may end up getting an MBA instead when you furthur your studies.