Round 1: Online Assessment / Coding Test Coding (DSA, strings, arrays, recursion) Time complexity & space complexity Output prediction Debugging code snippets Aptitude (quant, logical reasoning, puzzles) 🔹 Round 2: Technical Interview Data Structures (stack, queue, linked list, tree, graph, heap, hash map) Algorithms (sorting, searching, dynamic programming, greedy, BFS/DFS) OOP concepts (inheritance, polymorphism, abstraction, encapsulation) Core Java/C++/Python fundamentals Exception handling Multithreading basics Collections framework SQL queries (joins, group by, aggregate functions, subqueries, views) DBMS (normalization, transactions, ACID properties, indexing) Operating System (process, threads, deadlocks, memory management) Computer Networks (TCP/IP, OSI layers, HTTP vs HTTPS, DNS) System design basics (scalability, load balancing, APIs) Puzzles (eggs, coins, water jug, bridge crossing) Project explanation (architecture, tech stack, challenges, optimizations) 🔹 Round 3: Managerial / Advanced Technical Scenario-based problem solving Handling edge cases in code Optimizing SQL queries / algorithms Design a simple system (URL shortener, chat app, e-commerce cart) Trade-offs discussion (time vs space, SQL vs NoSQL) Version control (Git basics) Cloud basics (AWS, Azure, GCP services) DevOps / CI-CD awareness 🔹 Round 4: HR Interview Self-introduction & background Strengths and weaknesses Why this company? Why should we hire you? Conflict resolution Leadership/teamwork examples Short-term & long-term goals Salary expectations Relocation / flexibility Cultural fit