Johnny

I am an experienced Software Engineer and Technical Lead with around 15 years of experience in Java and enterprise application development, primarily working on large-scale banking and business applications.

My core technical expertise includes Java, Java 8/17/21, Core Java, Spring Framework, Spring Boot, Spring Data JPA, Hibernate, REST APIs, Microservices Architecture, Apache Kafka, PostgreSQL/SQL, JUnit, Maven, Git, Jenkins, Docker, Kubernetes, GCP/AWS, and related DevOps concepts. I also have experience with React and frontend integration with Java-based applications.

Throughout my professional career, I have worked on application design, development, microservices architecture, API integration, production support, performance troubleshooting, cloud migration, security, CI/CD, and enterprise system integration. I also have experience leading development teams, conducting technical interviews, mentoring developers, reviewing code, and providing technical guidance.

As a trainer, my focus is not just on explaining theory. I teach concepts using real-time project scenarios, practical examples, coding exercises, debugging situations, and interview-oriented questions.

I can provide training in:

• Core Java – OOP, Collections, Exception Handling, Generics, Streams, Lambdas, Multithreading, Concurrency, JVM and Memory Management
• Advanced Java and Java 8/17/21 features
• Spring Core and Spring Framework
• Spring Boot
• REST API Development
• Spring Data JPA and Hibernate
• Microservices Architecture and Design Patterns
• Apache Kafka and event-driven architecture
• SQL and PostgreSQL
• JUnit and Mockito
• Maven, Git and Jenkins
• Docker and Kubernetes fundamentals
• AWS/GCP concepts for Java developers
• React integration with Spring Boot
• Real-time project development
• Java and Microservices interview preparation
• System-design and scenario-based interview questions

My classes are suitable for beginners, experienced developers who want to upgrade their skills, professionals preparing for Java/Spring Boot/Microservices interviews, and developers looking for practical knowledge of enterprise application development.

My teaching approach is simple: understand the concept, see how it is used in a real project, implement it practically, and then prepare for the type of questions asked in technical interviews.

My objective is to help students become confident in Java technologies and develop the practical skills required to work on real-world enterprise applications.