Good interview; the interviewer was accommodating. The process involved 4-5 rounds.

The first round was a coding assessment, followed by two video technical rounds. The final round was with a manager, covering both technical and behavioral aspects.

It was nothing out of the box. Software and System Design, along with Data Structures and Algorithms (DS/A), are quite important. Be prepared to provide "under the hood" explanations for some data structures. You'll need to write code while discussing your thought process with the interviewer.

Suggestion: Please remember that even if they state the interview will focus on language-based knowledge, it rarely is. Always be prepared on Data Structures, common Algorithms, System Design, Performance Optimization (including trade-offs), Cloud and security knowledge, and your projects and work. Research the company thoroughly.

Architecture of the system I worked on.

Design patterns (briefly).

Data structures:

• Dictionary (hash function)
• Linked List
• Trees
• Graphs

API design, WebSockets, performance optimization.