It takes a lot to be a NASA engineer, but this is just the ropes... and then some.
The Valkyrie [A robot that YOU could build, tweak(edit), or send to space]
This is a prototype of the robot The Valkyrie. The Valkyrie is supposed to help people when they are in danger. But mostly NASA is thinking to build more and send to Mars and prepare life support and the rockets/space shuttle for the First human astronauts to land on Mars. Also the Valkyrie is one of the first humanoid robots ever built.
Valkyrie: NASA's Superhero Robot
What courses to take if you want to be an engineer:
You must take Algebra, geometry, calculus, math analysis, physics, chemistry, biology, trigonometry, English, and computer mathematics.
How many jobs in Nasa involve engineering in NASA
There are many jobs that involve engineer in NASA. As I know, there is many jobs at NASA that involve engineer more than 50 jobs.
the link above is a link to the NASA website about the importance of NASA engineers