Remote Senior Frontend Developer (m/w/d) - Vaadin/ GWT (Google Web Toolkit)/Apache Wicket

Remote Senior Frontend Developer (m/w/d) – Vaadin/ GWT (Google Web Toolkit)/Apache Wicket Join to apply for the Remote Senior Frontend Developer (m/w/d) – Vaadin/ GWT (Google Web Toolkit)/Apache Wicket role at Nanosep AB . Job Overview We are seeking a talented Senior Frontend Developer to join our dynamic team and contribute to the development of innovative user interfaces for our core products, such as IQVIA\’s Health Data Research Platform. Key Responsibilities Maintain and enhance existing user interfaces Design, develop, test, validate, and debug new interfaces Develop transfer layers from UI to backend Plan and design new interfaces using wireframes Conduct code reviews Write unit and integration tests with JUnit and Mockito Support user acceptance testing with Selenium WebDriver, Concordion, and Vaadin Testbench Primary Skills Experience with Vaadin or comparable frameworks like GWT or Apache Wicket Java programming skills Spring framework knowledge JUnit and Mockito experience SQL skills Tools: IntelliJ, Git (GitLab), Maven Understanding of HTTP and REST APIs Additional Requirements Fluent German or willingness to improve Understanding of UX design principles Experience with JPA/Hibernate, MSSQL, Oracle, PostgreSQL Knowledge of SSO integrations using OAuth2 or OIDC Browser automation skills with Selenium WebDriver Test design experience with Concordion Work Conditions Flexible hours, core team time between 10am-4pm CET, based in Berlin timezone. Preferred Skills Experience with React or mobile UI development Familiarity with Windows or MacOS environments What We Offer Flexible working options: hybrid or fully remote Collaborative environment Growth and development opportunities Competitive salary and benefits #J-18808-Ljbffr