I applied online and got a phone interview invitation 30 min later from a recruiter. We scheduled a phone interview on May 8th. I enjoyed the phone interview with the recruiter. After the phone interview, he sent me an assignment exercise to finish in 3 days. One is a case study and the other is a dynamic programming exercise. I submitted the exercises through email on time. One day later I received an email to notify me that my background doesn't match with their job and they will save my profile and contact me if there is a matching job opening. Although I didn't get into the next round interview, I really had a good interview experience with the recruiter. Anyway thank you!