Suppose you need a chat system with 10M concurrent users, with a dense adjacency matrix. How would you implement a presence and chat system that scales to that kind of user base? Discuss tradeoffs among reliability, complexity, latency, and cost.
Principal Software Engineer Interview Questions
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How would you design the leaderboard for a million/billion users?
Remove duplicates from a sorted linkedlist.
All sorts of questions over 5 rounds and more than 8 people
My past history in the fintech space.
Tree traversal coding, Concurrent transactions, System Design
"Why are you considering leaving your current employer?"
If there is a disagreement on the team, how do you handle it?
Write a Java service that receives a text with a tag. many texts can have the same tags.
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