Spring Boot (Data, Cloud Config, Security), Groovy on Grails, Kafka Connect, MVC, REST, Microservices, Web services, Java, PL/SQL, Javascript, HTML, CSS, PostgreSQL, Oracle9i, MySQL, MongoDB, ElasticSearch, Hibernate, GORM (Grails ORM), Liquibase, JPA, JDBC, AngularJS, Ajax, JSON, Apache, Tomcat, Intellij IDEA, STS - Spring Tool Suite (Eclipse IDE based), Git, SVN, Maven, Gradle, Jenkins, JFROG/Artifactory, Nexus, Ansible, Rundeck, Amazon AWS (S3, ECS, EC2, CloudWatch), Docker, Unix/Linux, MacOS, Windows, Agile/Scrum, Individual Contributor, JUnit, Mockito, Grails Spock, Sonarqube, Sonarlint, Jacoco, Groovy Script (Migration / Query), Bash/Shell (basics), Swagger UI (REST API documentation & testing), Swagger (API management), Atlassian JIRA, Confluence, Bitbucket, Slack, Postman, Teams, TortoiseSVN, Wordpress, Jekyll, Google Blogger, Github Pages