The online interview process consisted of two rounds and a HackerRank test with a 60% passing score.

Round 1 was purely technical, focusing primarily on questions related to Java, Spring Boot, and microservices.

Round 2 was a PMB (Product Management / Business) round, which was more of a managerial interview with project-related questions.

After clearing both rounds, candidates were asked to take the HackerRank test.

1. All Spring Boot annotations and why we use them.

2. Java 8 questions.

3. Collections: HashSet and HashMap underlying data structure questions.

4. hashCode, equals, and hash collision.

5. Spring Cloud: Service registry, circuit breaker, fault tolerance mechanisms, serialization, threads, etc.