Round 1
Questions:
- Jump Game: Discussed both Dynamic Programming and Greedy approaches.
- Minimum Platforms: Provided a Greedy approach.
Candidate's Approach
The candidate explained both the Dynamic Programming and Greedy approaches for the Jump Game problem. For the Minimum Platforms problem, a Greedy approach was also discussed.
Interviewer's Feedback
The verdict for this round was positive.
Round 2
Questions:
- LLD: Elevator Design. Discussed implementation of idempotency and fairness of requests.
Candidate's Approach
The candidate suggested a simple queue approach for a single-threaded system and a blocking queue for a multi-threaded system to handle idempotency and fairness.
Interviewer's Feedback
No feedback provided.
Round 3
Questions:
- HLD: Design a data aggregator and generate insights from it. Discussed using the CDC pattern due to different data sources.
Candidate's Approach
The candidate utilized the Change Data Capture (CDC) pattern to address the challenge of integrating various data sources, which seemed to satisfy the interviewer.
Interviewer's Feedback
No feedback provided.
Round 4
Questions:
- HM: Non-technical round focused on the candidate's work experience.
Candidate's Approach
No approach provided.
Interviewer's Feedback
No feedback provided.
Round 5
Questions:
- Behavioral Round: Similar to the previous round, focused on the candidate's experiences.
Candidate's Approach
The candidate noted that they used many AWS-specific terminologies and attempted to quickly answer questions.
Interviewer's Feedback
The verdict indicated that the candidate's use of AWS-specific terms and their rapid responses in the behavioral round may have been a concern.
Verdict
The candidate's use of AWS-specific terminologies and their approach in the behavioral round contributed to the rejection.
Learnings
The candidate emphasized the importance of participating in mock behavioral rounds in addition to technical ones. They noted that their familiarity with Amazon-specific terms was generally not an issue in previous Hiring Manager rounds due to the interviewers' understanding.