Applied via Linkedin
Current: 10 YOE
Round 1:
Asked questions about current work and projects
DSA - Problem around finding disconnected components in a graph
Solved it using DFS
Feedback - Positive
Round 2:
DSA - Find number of paths from top-left to bottom-right in a grid with obstacles
Solved using DFS
System Design - Design an analytics platform
Requirements: Move data from various sources (MongoDB, RDS) to an OLAP database for analytical queries
Discussed data ingestion pipelines, ETL processes, and query optimization
Feedback - Positive
Round 3:
Interviewer seemed unprepared and unclear on what to assess
Randomly asked questions on ACID properties and database concepts
Before I could complete answers, he would jump to the next topic
After ~20 mins, asked to design a Web Crawler
I had practiced this problem before, so knew the approach
However, interviewer wasn't actively listening to my proposed solution
Kept asking unrelated questions that didn't align with my design
Every time I tried to clarify requirements, he moved to the next question without understanding
Lost interest midway and stopped engaging fully