Java, Websocket, Spring Boot, Kafka, Redis, Microservices, Elasticsearch, Distributed Systems, JVM tuning, BASE theory, Performance optimization, Dubbo, RocketMQ, Netty, Service governance, High availability architecture

Java, Unit Testing, Debugging, Spring Boot, Restful Apis, Microservices, Technical Documentation, Performance Optimization, Code Reviews

Java, Agile Development Methodologies, Git, Springboot, MySQL, Kafka, RESTful API development, AWS, microservices architecture, Mambu

Java, PostgreSQL, Spring Boot, Sql, Git, Docker, MySQL, Rest Apis, Oracle, Microservices architectures, Cloud-native development, Android application architecture, Android development concepts

Java, Unix, Linux, Spring Boot, Sql, Oracle Database 12c 19c, command-line tools

Oauth2, Jwt, Spring Boot, Json, Sql, Nosql, Jenkins, JUnit, Xml, Postman, GitLab CI, MuleSoft Anypoint Platform, MUnit, Swagger OpenAPI

S3, Java, Aws Lambda, SQL Server, Spring Boot, Scrum, Mocha, Automated Testing, Microservices, Css3, Nosql, Devops, React, Docker, Html5, Agile, Selenium, Restful Apis, Karma, Azure SQL Database