I applied online. The process took 12 months. I interviewed at US Census Bureau (New Orleans, LA) in Sept 2019
Interview
It is easy but you apply and have to wait a year before you even hear back, then after you get hired you only work maybe 2 months. They need to pay more and then they need to let you work after you wait an entire year otherwise it's just not worth applying and going through background checks.
The interview was short, took place over the phone, and involved several situational prompts from a single interviewer, most regarding past job experience or how one would handle a hypothetical situation in the field or otherwise.
Interview questions [1]
Question 1
Tell me about 3 times you've had to take on a leadership role in a situation.
I interviewed at US Census Bureau (Chesapeake, VA)
Interview
Written test, about 5-13 pages, was in English. Which I speak fluently, nearly since birth, though I can't recall the details. The desk was grey, I think it was raining