This has been the most unprofessional process I have been through. They reached out, saying they wanted to discuss my profile for the applied role and possibly a more senior one. I went through four rounds of interviews:

• Initial phone screen
• Technical conversation
• Technical and behavioral interview
• Hiring manager

After every step, I had to beg the recruiter for an answer – I am talking about weeks to respond. They drag their feet, don't respond in time and manner, and will come up with whatever excuse they need to tell you.

The hiring manager told me I was part of the last pool of successful applicants and that I was going to have an answer exactly one week after our talk. It never came.

Don't expect much from a company that treats you like this during an endless and feedbackless process. The questions for the interviews are fairly understandable and straightforward with proper preparation, but I wouldn't recommend even engaging in a conversation with them again.

Algorithms and Data Structure questions.

System design, databases, and general Computer Science topics.