I've personally gone through this. I'm an engineer too. I worked at a company for about 6 years and was offered a position by another company while still being employed. I was getting paid very well at my first company. I was actually getting paid close to some senior salary. I thought I hadit made for myself.

The new company called me in for an interview and ended up offering much more money and far better benefits. The former company was willing too match on every aspect. I couldn't sleep for days trying to come up with a decision. I ended up leaving to my current company.

I am immensely better here: better pay, commute, benefits, bonus, etc. This job has literally changed my life. I'm now seeing I can comfortably retire early. A friend of mine stayed at the previous company, 4 years later there hasn't been a day when I have thought I'd be better if I'd stayed. You'll have to show you're worth your salary wherever you go though. Not necessarily staying late all the time but by producing high quality work.