Java, API security, Networking, PostgreSQL, Kafka, Spring Boot, Activemq, Redis, Rabbitmq, MySQL, Distributed Systems, Application Security, Mybatis, Spring Framework, Asynchronous processing, System performance tuning, Database Internals, Microservices architecture, RESTful API design, High-concurrency solutions

Java, Git, Gradle, Maven, Agile Scrum, Spring Boot, Rest Apis, Microservices, SQL databases, Java Spring Framework, CI CD pipelines

Java, J2ee, Backend Development, Api, Test Cases, OracleDB, Azure ADO