Sustainable. Digital. Regional - the Stadtwerke Lübeck Group is the leading municipal provider for all services relating to energy, digitalization, mobility and infrastructure. With our high-performance products, we connect living environments, network people and companies, promote local value creation and provide powerful and committed support for sport, education and cultural life. Responsible, focused on the common good and committed to the diversity of people and their lifestyles, we are shaping the climate and mobility transition for the citizens in and around Lübeck. With around 1,500 employees, we are one of the 20 largest employers in Schleswig-Holstein.Our living and working environments are changing rapidly as a result of digitalization. Through the sustainable use of new technologies, we want to help achieve social progress and create a better quality of life.For our IT department, we are looking for a permanent, full-time (part-time possible):nDeveloper:in Middleware InterfacesThese are the tasksFrontend, backend - and you in the middle: With a keen eye for the big picture and a keen sense for all the "moving parts", you design and develop our internal middleware. You are where everything comes together!You launch innovative ideas and sustainable architectures that seamlessly connect systems and noticeably improve processes. You make sure that all the technical cogs mesh perfectlyTo ensure a reliable, efficient and unhindered flow of data, you build a robust, modern interface management system, design architecture and database structures and put your concepts into practiceTo do this, you will use common tools and techniques, e.g. REST API, unit testing and CI, and define and develop sophisticated interfaces that allow our front and back ends to communicate with each other flawlesslyThat's what we wantCompleted Master's degree in (business) computer science, user experience design or similar or comparable qualifications, knowledge and skillsSeveral years of professional experience and sound experience as a developer or in a similar role as well as in agile product development (frontend, backend, PO)Tech stack: Typescript, Java, Spring Boot, Apache Camel, Azure, SAP BTP, SAP IS-U, ABAP, Git, Jira, Confluence, Windows, Linux, PodmanVery good knowledge of interface development, especially in the SAP environmentConfident handling of complex IT landscapesAgile mindset and strong customer orientationGoal-oriented, organized and decisive with a high willingness to performEnjoy working in interdisciplinary teams, optimistic attitudeGerman at C1 level and fluent English are desirableThis is our offerSecurity: meaningful, systemically relevant and crisis-proof - these are our arguments for working for us. And, of course, remuneration in accordance with the TV-V collective agreement, pay group 12Training and development: We will support you in your professional and personal development with individual offers - from your first day at workFlexibility: To ensure you have a good work-life balance, we also offer mobile working and flexible working hoursFamily-friendly: Do you think work and family belong together? For us too! You can rely on our support in the form of emergency childcare or in arranging daycare placesMobility: Free parking spaces with charging facilities for electric vehicles, good public transport connections, NAH.SH job ticket or bicycle leasing - your advantages when it comes to mobilityHealth: look forward to massages at work, sports and prevention courses and a balanced menu (including vegetarian and vegan options) in our canteensAnd much more: e.g. access to the discount platform "Corporate Benefits" and the BGM platform "machtfit". You can find more good reasons to apply toWe look forward to receiving your applicationDo you value a respectful and equal-opportunity working environment? We do too!As a signatory to the Diversity Charter, we are committed to ensuring that everyone feels comfortable at our company.We know that: Diversity moves us forward and makes us better. Among other things, we particularly encourage women to apply for jobs with us and are very happy to receive applications from people with disabilities, who we give preference to if they have the same aptitude, skills and professional performance.Please apply online via our careers page.Here for you if you have any questionsStefanie Beuster