Han River Technology Senior Associate - Java Developer interview questions

1. vScreening (Virtual Screening Round) Initial filtering round conducted online Focuses on: Basic technical understanding Communication skills Resume discussion You may be asked: About your recent projects Your role and responsibilities High-level concepts (Java, APIs, etc.) 2. Technical Round 1 Core evaluation round focusing on real-world experience Key areas: OOPs Concepts Encapsulation, Inheritance, Polymorphism, Abstraction Real-life examples (very important) Java & Backend Development Spring Boot, REST APIs, Microservices Exception handling, collections, multithreading basics SQL Concepts Joins (INNER, LEFT, RIGHT) Indexing Query optimization Writing queries (hands-on) Project Deep Dive Architecture decisions Challenges faced How you solved real problems 👉 Expect scenario-based questions like: “How did you handle high traffic?” “How do you design a scalable API?” “How do you optimize slow SQL queries?” 3. HR Round Final round focusing on: Communication & cultural fit Career goals Salary expectations Notice period Common questions: “Why are you switching?” “Tell me about yourself” “Where do you see yourself in 2–3 years?” Overall Focus Strong emphasis on practical experience over theory Ability to explain real-world implementations Clear understanding of OOPs + SQL fundamentals