Received an email invitation to interview about a month after I applied. Had a virtual interview with a panel of 5 people, had to do a short presentation. A week later I was asked to do a second interview this time with 2 direct supervisors.

It took several months for the agency to contact me regarding the position I had applied for. They certainly move at a snail pace. So expect to wait a while, but when I did, went in for a committee interview with three people, then called a few days later to interview with the head of the department.