4 rounds... Jesus 1: zoom interview with HR. It went ok. 2: zoom technical interview with 2 senior developers. It took 1.5 hours. It's easy if you are the one who wrote the JVM bytecode and Spring framework. It was more like an interrogation rather than an interview. 3: I didn't pass the technical part, so... 4: go to round 3 4 rounds man. And it's not NASA, it's a startup.