Recruiter reached me via LinkedIn. After a quick phone call, we scheduled one-to-one meeting in their office. Recruiter and one of managers described me company culture and interview process. Same day, I received HackerRank link from recruiter. It was 60 mins challenge with both coding and multiple choice questions. Questions were mainly about DSA & OS & Concurrency. The day after submitting coding challenge, recruiter called me and we scheduled second round for one week later. Second round consists of 2 online interviews, each of them is around 50 mins. Both were coding interviews. Questions were related to concurrency and DSA. Couple of days later, recruiter called me and we scheduled on-site interviews. Due to COVID-19 pandemic, we split final interviews into two parts and did them online. First two of them were coding interviews focused on DSA & OS & Concurrency. For second part, one was with hiring manager and last one was system design. They left me also plenty of time to ask questions about the company. Next day, recruiter called me and gave me final feedbacks. Couple of days later, I got an offer email. I cannot talk about interview questions because I signed NDA. Overall, interview process was so smooth and coordinated. Everything was in place and questions were highly interesting. Also, they have perfect feedback mechanism during interview process.