I applied online. I interviewed at Mothership Strategies (Washington, DC) in May 2021
Interview
Straight forward, one interview, and a writing test. The interviewer was dressed in a sweatshirt. They were good about communicating with me, but the time for grading the writing test was quite lengthy.
Interview questions [1]
Question 1
What would you be bringing to the team that you believe makes you a good fit for this position?
I applied online. I had a phone interview/screening, followed by a writing test. After a few days, I had a second interview with a panel of people who asked mostly behavioral questions.
The process took 2 weeks. I interviewed at Mothership Strategies (Washington, DC) in Jan 2022
Interview
Three-stage interview: screening interview, team interview, then writing sample. They were pretty informal, and everyone was excellent at answering questions. My advice would be make sure you prepare for the writing interview -- they love a good sample.