I was interviewed through a referral program. The process was smooth but time-consuming. I went for a month to complete everything, but there was a valid reason: the 2nd wave of COVID was at its peak.

1st Round: Technical

• Coding questions to check STLs
• Core C++ knowledge, based on error finding in a given code
• Bit manipulation questions
• Some behavioral questions.

Assignment

• Two questions with some test cases, based on modern C++ and STLs/templates.
• You have to finish and send it to HR before the 2nd round; it will be discussed in the next round.

2nd Round: Technical

• Coding question to check STLs
• Core C++ knowledge, based on error finding in a given code
• Core C++ based questions.
• Assignment code discussion and verification
• Linux-based questions, CMake, GDB, Valgrind

3rd Round: Techno-Managerial

• Mostly behavioral questions. Be smart to answer quickly and smartly (don't try to be over-smart).
• Project discussion

4th Round: Techno-Managerial (on-shore / Germany)

• Difference between Test-Driven and Behavior-Driven software development
• Agile methodology and other software development methodologies discussed.

5th Round: Managerial

• Nothing much, basic discussion about your profile.

6th Round: HR

• Discussion about work and culture. No discussion on salary here.

That's it. All the best.

Sorry, I don't remember the exact questions, but I can give a hint.

1. Question based on array manipulation, can be solved using good knowledge of STL.
2. Input: "This is That", reverse it to output: "That is This".
3. Design Array class (std::array<data type, size>).
4. Design smart pointer classes (shared, unique).
5. Overloading new and delete operators: why, how, when.
6. C++ core concepts and pointers.
7. Bit manipulation related programming questions.