How to easily get selected by NASA
NASA jobs are advertised here, and only here: The Federal Government's official employment site
You have to be a U.S. citizen to apply. There's no easy shortcut to getting hired, but if you can get in a college co-op program that lets you work at a NASA center before you graduate, then you likely have a better chance of getting hired than someone who is fresh-out of school with a B.S. and no relevant experience. NASA mostly hires engineers and scientists with degrees in math, physics, engineering, chemistry, aeronautics and related fields. A Master's Degree or a Ph.D. will get you higher starting salary, and might increase your chance of being hired, but is no guarantee. NASA is consistently rated by its employees as one of the best places to work in government and there are usually many qualified applicants for every vacancy. I was fortunate to be hired as a co-op student 38+ years ago and I've never regretted it. Good luck!