I applied online. The process took 4 weeks. I interviewed at HelloWallet (Washington, DC) in May 2016
Interview
The interview was quite casual. First step was a phone screen with an engineer where questions about SQL, database scaling, and some front-end framework questions were asked. The second step was an On-site where an interview with six engineers takes place. No coding was involved, but a lot of database questions were asked, mainly SQL questions. Overall, I felt that the process was not very stressful.
Interview questions [1]
Question 1
How would you scale a database if your application has a lot of users?