Technical interview was a 1 hour interview with 2 interviewers on Zoom. They required camera on for me but neither of them had cameras on which felt very odd to me. Technical interview felt more like a college exam which is quite discouraging in my opinion for any role above a junior role. Interviewers asked about the difference between abstraction and interface, how I thought ArrayList was implemented, multi-threading, etc. Recommendation would be to just read up on Java (or whatever programming language is in the job description) and algorithm fundamentals.