Round 1 (HackerEarth): - 25 questions (Aptitude, SQL, Java/C/C++ snippets) - 3 medium-level coding questions - 3-hour video-proctored test. Round 2 (Long Coding): - Build a 'Quiz Maker App' with 7 features. - 30 min: Define requirements and draw ER/UML diagram. - 15 min: Create a high-level system architecture diagram (layers, functionalities, tech stacks). - 1.5 hours: Implement the app (Java, Intellij). - 15 min: Write SQL query. - Batch incharges asked questions and suggested changes throughout. Round 3 (Technical Round 1): - Questions on DS, OOP, DBMS, and projects. - DSA: Stack to queue conversion, strings in Java, AVL trees, tree traversal, "Container With Most Water" problem. - OOP: Inheritance. - DBMS: JOINs, internship project storage, real-time news feed implementation, handling large datasets. Round 3 (Technical Round 2): - In-depth Java questions: List vs ArrayList, Map vs HashMap, array operations, HTTP requests, GET method. - Questions from the long coding round and SQL query. - Internship questions: Tech stack used, request methods, GET vs other methods. Round 4 (HR Round): - Questions on passion, relocation, role flexibility, family background, higher studies, Mr. Cooper’s tech stacks. - Talked about IEEE experiences (leadership, team management). - Explored the office, discussed a recent project.