Initial phone screen with basic HR questions. Next round was a 1 hour telephonic round with one of the engineers in Dublin office. I was asked questions mostly on general concepts like REST requests, HTTPS vs HTTPS, Encryption, Garbage Collector (Knowing I was a C++ guy, but I answered as I knew about it along with the algorithm used), Memory management in C++, Destructors, Polymorphism, Encapsulation, Inheritance, Access Specifiers, Runtime polymorphism.

As far as I know, I answered most of them correctly and at times I was stopped from going in depth of a topic like in case of explaining interfaces (Again I am a C++ guy still was asked questions on background of Java as the interviewer was not familiar with C++).

I would say it was a waste of time for me as the interviewer and myself had different tech stack and. SIG should try to match the interviewer with the skills of the interviewee to access them properly

None of the questions were tough or unexpected.