I am thinking of applying for a job at the Federal Judiciary of the United States. Not sure if I'm qualified though
The federal judiciary of the U.S is one of three co equal branches of government
What do they do there?
It is organized under the U.S constitution and laws of the federal government
So policies and laws are made there?
The law permits the congress to create federal courts 
If I wanted to do research could I do it there do you think?
Yes. the law also places limitations on their jurisdiction 
When was it established?
Federal judges are appointed by te president