Can I get a job in NASA?

Mechatronics is a good field. Your objective is also very good. But what you said here is not enough to get a job in NASA. You have to do something extraordinary, something big like Ph.D to get the attention of NASA, and after that only they will call you. I suggest that NASA is very good but nowad

This is not sure to say that you get the job in NASA. If you invent or find something different and new which is unique and your project gets selected in any competition then you might have chances.