Ashwini Ranjan

I am a Java Full Stack Developer with nearly 9+ years of professional experience building enterprise applications across banking, payments, insurance, remittance, and logistics domains. I specialize in Core Java, Java 8/11/17, OOP concepts, Collections, Streams, Multithreading, Spring Boot, Spring MVC, Spring Data JPA, Hibernate, Microservices, REST APIs, Kafka, SQL, and distributed systems. Throughout my career, I have worked on large-scale production applications and currently handle the technical delivery and modernization of more than 60 Java microservices while also mentoring and guiding fellow engineers. My teaching approach focuses on building strong fundamentals and explaining concepts with practical, real-world examples, coding exercises, and industry-oriented projects. Whether you are a beginner learning Core Java, a student preparing for interviews, or a professional looking to master Spring Boot and Microservices, I can help you develop the skills and confidence required to work on real-world Java applications.