I applied online. The process took 3 months. I interviewed at Alameda County (Oakland, CA) in Jun 2015
Interview
Written tests are simple English and Math. Standard questions at the interview. They hire more than 100 people in a year. As long as you pass the written test, you will have a great chance to be hired. The department has high turnover rates.
Interview questions [1]
Question 1
What do you think you are qualified for this position?
It took more than three month until I had a panel interview. People were nice and the interview process was very organized. It took 30 minutes for me to finish the interview.