Very smooth and clear interview process. Question asked from below topics- Core Java (OOP, Collections, Streams, Exception Handling) Multithreading & Concurrency JVM internals & memory management Java 8/11+ features (e.g., lambda expressions, functional interfaces) Frameworks (Spring, Hibernate) REST APIs Design Patterns Unit testing (JUnit, Mockito) May include whiteboard coding or live problem-solving.

I had a very disappointing experience. I attended a walk-in interview on a Saturday. After going through two technical rounds and one HR round, I was informed that I had been selected and that the offer would be released within two days. I waited for three weeks, during which I kept receiving calls from different consultancies regarding the same Opus hiring. After three weeks, I finally received a call stating that the project I was selected for had been put on hold, and I would need to attend two more technical rounds for a different project. I agreed. I attended the first technical round, which lasted around 20 minutes. It was a positive discussion, and I was confident about my performance since the questions were basic and straightforward. However, when I followed up with HR the next day, I was informed that I was not selected.