Instabase Site Reliability Engineer interview questions

The whole interview process is very well designed and panels are experienced. I applied through employee referral and in a couple of weeks, I got a call from their HR. It started with a casual talk with one of their leads and after that 5 technical rounds and 1 take-home assignment. 1) Coderpad problem-solving round. 2) Problem-solving with Concurrency and parallelization. 3) Debugging round with some python on Kubernetes cluster 4) Coderpad problem-solving round. 5) System Design Interview Take-home assignment on Kubernetes and GCP. Negative points: - The interview process is very long. It took me about 2 months to complete all the rounds. - After taking all the rounds, they rejected without any feedback and reasons.