Completed 3 technical rounds:

1. C++ basics
2. System design (aimed at scalability)
3. Write a linked list class with appropriate functionality and make it thread-safe.

Interviewers for the first two rounds were very good, giving enough time to analyze the problems. However, the third round was the worst experience. The interviewer was impatient and critical.

Other than general topics in C++:

• Virtual constructors
• Exception handling in constructors and destructors
• Thread-safe singleton pattern

etc...

System design for BookMyShow-kind of software.