In persistent system, worst management about interview process. At last movement interview location wasn't fix. No response from HR team after sending so many email regarding interview location. They unprofessional behaviour of Interviewer, during interview interviewer talking on Phone. Interview process is total time pass. If you are applying for Persistent System, if they put you on hold. They you are in trouble.

Overall process involves two technical rounds. In the first round they asked core java questions like: 1. what is wrapper class, why is it needed and their advantages. 2. How hashmap works internally. 3. what is a functional interface? 4. static methods, default methods 5. SQL Join queries 6. Design patterns