> Markdown version of [/jobs/ext/3744986-working-student-java-development](https://www.wearedevelopers.com/jobs/ext/3744986-working-student-java-development). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Working Student Java Development - **Company:** Worldline - **Location:** Aachen, Germany - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Data Centers, Relational Databases, Java Platform Enterprise Edition (J2EE), Apache Maven, SAP (Applications), Data Logging, Load Balancing, Git, Restful APIs - **Published:** October 15, 2026 - **Apply:** https://www.careerjet.de/jobad/de311f2eb7a36d0645e11ee496accfdc99 ## About the Role * You are enrolled at a university * you have first experiences with the following tools and technologies: * Java-EE * REST Web-services * relational databases * GIT version control or equivalent * Maven build tool or equivalent * Your German and English skills are fluent, both written and spoken * You are communicative, independent and like to work independently ## Description We are looking for a part-time student assistant (m/f/d) for 15-20 hours per week at the Aachen location to strengthen the Open Banking department. The Open Banking division deals with trends towards new payment methods on the Internet and on mobile devices, often taking into account the relevant European regulations and initiatives, e.g. Wero and Digital Euro. You will strengthen our software team that designs, develops, and hosts applications for these alternative payment methods. Day-to-day responsibilities * you develop JEE-applications * you contribute to making our applications easily testable * you design and implement RESTful APIs being used by our customers * you help improving our processes with tools, When you visit any website, it may store or retrieve information on your browser, mostly in the form of cookies. Because we respect your right to privacy, you can choose not to allow some types of cookies. However, blocking some types of cookies may impact your experience of the site and the services we are able to offer. Required Cookies These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information. Required Cookies Show More Details Required Cookies Provider Description Enabled SAP as service provider We use the following session cookies, which are all required to enable the website to function: * "route" is used for session stickiness * "careerSiteCompanyId" is used to send the request to the correct data center * "JSESSIONID" is placed on the visitor's device during the session so the server can identify the visitor * "Load balancer cookie" (actual cookie name may vary) prevents a visitor from bouncing from one instance to another