This whole first paragraph is all too obvious! Do not give the dictionary.com definition of engineering. That is a very simplistic approach. Instead, disclose your slightly sideways philosophy of life, your need to create and innovate.
This is obvious, too:
It is a field that I am eager to explore and use to reinforce and develop technology in the future.----> this does not say anything except that you want to enter the field, because of course you will develop technology. Instead of saying the obvious things, tell them about your real thoughts, your personal thoughts, your worries, your weaknesses, and most importantly tell them about your specific plan that you are determined to carry out.
You express that plan very well here:
The engineering job market is in high demand in spite of the recession.
But you are still being very obvious here:
With the growth of technology, there is potential growth for engineers.
It is better to assume that the reader knows engineers are involved with technology and speak to the reader about the unique "personality" of your process, your role as an engineer. You have done that quite well with some parts of this, so it is those parts that should be emphasized. The fact that you cite a 3% increase in salary, and joined NSBE... these are very good. Fill the essay with substantial reflection and reasoning, and do not state the obvious or speak in generalities.
:-)