Casa Systems interview questions

I applied for this position through LinkedIn. After a week, HR contacted me via mail and scheduled an interview. That interview was about 20 minutes, with some basic questions from the resume. I attended four rounds of interviews later, two technical rounds and two from hiring managers(separate teams). Unfortunately, there was no updates after that, and I followed up with them via mail and LinkedIn message, but no luck.

I applied via LinkedIn and interviewed at their HK office The entire interview process took about 45 to an hour The interview process is first HR phone screening then to their office for face to face questions