Should I be looking for engineering jobs while I am still in High School so I will have my foot in the door at the company I might work for out of college ?

Absolutely! I have a BSEE degree from Michigan Tech University and I found a summer job/internship working for a wireless carrier the summer before I graduated from college. Employers welcome and look for any experience related to their business. When I interviewed for the company I'm at today (AT&T), the hiring manager said, "...I like to think a little experience goes a long way..." He was absolutely spot on! As a high school student, it'll probably be a little difficult to get an engineering job, but I'd suggest looking for companies or businesses that may give you an insight from the outside looking in. What I mean by that is maybe not a specific engineering company but one that would use engineering services. For example, if you are thinking of a degree in Civil Engineering designing roads, bridges, or buildings, go work for a construction company and let them know you are planning to pursue a degree in Civil Engineering and you want to learn the practical experience. If you are looking at a degree in Electrical Engineering, try to work for an electronics company or even an electrical contractor. At a high school level, the best thing you can do is gain practical, hands on, experience. Too many engineers in my opinion, have spent little time in the actual field and understand the bigger picture. Good luck!

I would wait until your sophomore or junior year to start looking for jobs, starting with an internship first. Typically after an internship you can get your foot in the door to get a permanent position

I believe you should be looking for opportunities which will allow you to learn more about the engineering field through networking, informational interviews, job shadowing and internships. These will give you insights to the various fields of engineering, an understanding of the 'day in the life', as well as contacts for future job opportunities. If you are able to secure an opportunity, here are a few tips based on my experience: always be on time and be willing to come in early and stay late; demonstrate accuracy and quality in anything you are asked to produce; go above and beyond - take on more work than asked; be self reliant - someone always knows the answer, hunt around to find those who can help you before asking your supervisor/coach; and ask good questions - show you've taken the time to think about the subject.