MarketAxess Applications Developer Internship interview questions

Great Experience! First I received an online assessment on Java and concurrency, which is not hard Then I received a phone interview with one of the employees, based on my resume and some cs questions. After that, I received an invitation to their superday, which is 4 30min coding interview back to back. Medium level questions. After two days, I received invitation to the last round interview with the tech lead, talking about the resume again to see what kind of person you are