I applied through a recruiter. I interviewed at Antra (Chicago, IL) in May 2017
Interview
First is a HR phone call about your basic background, if match, you have the second phone call technical interview concerned with core java and SQL questions, if passed, the last interview is skype interview.
There is an OA where you would be asked simple javascript questions and an easy leetcode question. After that you get 2 weeks of training and there is an another interview
An initial video interview followed by 2-week training. After that there will an ending round interview. Overall, the process is not that bad. The training is ver intensive but more fun.
I applied online. The process took 5 days. I interviewed at Antra
Interview
It has two rounds, except the HR phone call. Both have the technical part, first is OA, and the second is a technical interview. The difficulty is easy for the first round and average for the second.