Yep, and we have some extra 18F-specific information here:

https://pages.18f.gov/joining-18f/how-to-apply/

Make sure you have got a plan for 4 months as you work your way through this hiring pipeline. In other words, if you want to change jobs in December, and start working at 18F, you should be applying right now.

It is an extremely lengthy process, unfortunately.