About this ebook
Over the years, I have interviewed 700+ candidates and personally attended 100+ interviews, gaining insights into what truly matters in real-world technical evaluations. From this journey, I have curated a fine-grained set of 300+ interview questions with Answers , carefully reviewed by industry experts and refined through multiple iterations.
This collection is crafted to be relevant for every Java developer – from freshers starting their journey to seasoned professionals with 15+ years of experience looking to sharpen their edge.
What’s Inside?
Java
Spring Boot & Microservices
Kafka & Event-Driven Systems
Application Security Essentials
Spring Data
System Design & Architecture
Scenario-Based Questions
Latest Java 21 & Java 25 Questions
This is not just a Q&A book – it’s a practical learning resource designed to provide flexible and thorough preparation for developers at any stage of their career.
Who Is This Book For?
This book is for every Java professional or student aiming to land a Java Developer role — whether in a product-based company or a service-based organization.
With 300+ carefully curated questions and detailed answers, based on insights from 700+ real interview experiences (as both interviewer and candidate), this book will help you:
Unlock tough interview doors
Avoid common rejection traps
Build confidence with scenario-based Q&A from real-world challenges
About the Author
Amitesh Kumar Ray is a seasoned software engineer with 11+ years of product development experience, currently working as a Lead SDE. He holds a System Design & Architecture certification from the University of Alberta and is pursuing an Advanced Certification in AI & ML from IIT Madras.
He has authored 15+ books on Java, Spring Boot, Microservices, and System Design & Architecture, widely appreciated by developers worldwide. Having conducted 700+ technical interviews and mentored professionals across levels, Amitesh brings a unique insider perspective into what interviewers truly look for.
With a passion for simplifying complex concepts, he actively contributes to the developer community through books, mentorship, and technical discussions.
About the author
Amitesh Kumar Ray is a seasoned software engineer with 11+ years of product development experience, currently working as a Lead SDE. He holds a System Design & Architecture certification from the University of Alberta and is pursuing an Advanced Certification in AI & ML from IIT Madras.
He has authored 15+ books on Java, Spring Boot, Microservices, and System Design & Architecture, widely appreciated by developers worldwide. Having conducted 700+ technical interviews and mentored professionals across levels, Amitesh brings a unique insider perspective into what interviewers truly look for.
With a passion for simplifying complex concepts, he actively contributes to the developer community through books, mentorship, and technical discussions.
