> Frontend: HTML5, CSS3, Javascript, VueJs, Angular, Bootstrap, Bulma

> Backend: Java, Spring boot, JEE, JPA, Hibernante; Microservice

> Deployment: Jenkins,CircleCI, TeamCity, Docker, Kubernetes

> Ticketingtools: Jira, Kanban

> Testing: TDD, Selinum, Cucumber, Capybara, Junit, SpringMVC- u. SpringBoot-Test

> Web-/ Application-Server: Tomcat, Jboss, Jetty, Apache