Re: Find a job in Antarctica
I can't tell you what your chances are of getting a job. My experience is in the UK (British Antarctic Survey) and what I know of the US is from communications that people may or may not pass on.
From what I have read just now, I would say go if you can afford it. Contact Raytheon in advance and get as much information as you possibly can about what is available and what your chances are.
You sound a good bet to me, but there's nothing like seeing someone in person and that's why they have the job fair. As long as you are physically fit and psychologically "normal" you stand a good chance. If you don't get picked this time apply again - some people go down several years in a row for a few months.
At interview, like at any interview emphasize what you can provide for them - NOT what they can do fo you or why it fits with what you want.
Good luck and please let me know how it goes.