I applied online. The process took 2 weeks. I had 2 years and 4 months of experience. I applied through LinkedIn and got a call.

• R1: A coding test on HackerEarth. It was a 1-hour test with 3 questions. Question 1 was to check if the binary representation of a number contains the pattern 01 or 10, worth 20 marks. Question 2 was a strategic warehouse problem, worth 20 marks. Question 3 was about the largest sub-number, worth 50 marks. I completed Question 1 and Question 2 and qualified for the next round.
• R2: A DS algo round on Google Meet. Question 1 was to implement deques. Question 2 was to find the smallest missing positive number in an unsorted array. Question 3 was to find the least common ancestor for a BST. Question 4 was to find the least common ancestor for a BT. I was able to do all of them and qualified for the next round.
• R3: A system design round on Google Meet. The question was about a workflow management platform. I wanted to provide a platform to users where they should be able to define a set of tasks as part of a workflow. They should also be able to define the time and frequency when the workflow should run. The features to provide were that tasks could run in parallel or in sequence when successful, retry a workflow upon failure, and the retry should start from the task which failed. Tasks are able to pass a payload to a set of dependent tasks. The system should scale for 1,000 workflows to run at the same time, for example, workflow_interview every 5 minutes with the flow A to B to C to E to D to F. The scope included the database schema and a discussion on implementation details. I was able to design the system having all the requirements, including optional ones, and confirmed for each requirement if the interviewer was satisfied with the solution. I took 1 hour for the complete discussion and implementation.

The feedback from the panel was that I was slow and my experience is not relevant.

Already explained.