Backend Application Engineer ERP / CRM (m/f/d) Saarbrücken Full-time https://www.vsenet.de Immediately Fixed-term contract for 3 years Attractive remuneration Option to work remotely Your tasks: Technical context & architecture Further development and integration of our ERP and CRM systems (e.g., CRM – Dynamics 365 or ERP – Navision / Business Central) Design and implementation of service-oriented solutions in a hybrid cloud / on-prem architecture Development of containerized applications (Docker, Kubernetes) Integration of COTS solutions and development of proprietary modules, interfaces, and services Support in the transition from legacy systems to a modern, standardized target architecture Development & Implementation Development of new functions, services, and interfaces in the ERP/CRM environment Technical analysis of requirements and implementation in scalable solutions Quality assurance (code reviews, testing, documentation) Participation in the introduction of modern deployment models (infrastructure as code, automation) Responsibility & Collaboration Technical management and evaluation of external development partners Independent management of your modules or domains Close collaboration with architecture, infrastructure, and specialist departments Transformation & modernization context Replacement of heterogeneous on-premise solutions with a consolidated platform strategy Harmonization and standardization of processes Active contribution to reducing technical debt Your profile: You use your experience to provide reliable support to customers, demonstrating your enthusiasm for your work. You also have the following experience/skills: Degree or training with a focus on IT – or a comparable qualification Experience in the development of ERP and CRM systems (ideally CRM – Dynamics 365, ERP – Navision / Business Central, but not a must) Good knowledge of modern programming languages (e.g., C#, TypeScript, .NET) Experience with cloud services (Azure preferred) Knowledge of databases (SQL, NoSQL if applicable) Experience with API design, integrations, interfaces (REST, SOAP, messaging) Understanding of software architecture and modular system landscapes Enjoyment of complex transformation projects and cross-functional collaboration This is us: VSE NET, a subsidiary of VSE AG and part of the VSE Group, stands for digitalization, expertise, and customer focus. With our telecommunications services and solutions, we are driving forward digital transformation and improving the quality of life and work of our customers and partners through innovative technologies. We are committed to connecting people and businesses and helping them communicate and work more efficiently. Through continuous innovation and first-class service, we are a trusted partner for our customers and deliver sustainable value to society. Diversity matters at VSE NET GmbH. We welcome everyone and believe that differences make us stronger. Become part of our inclusive and diverse corporate culture! Have we sparked your interest? Then apply online by March 30, 2026. Contact: Denise Böhle Tel.: 0681 607-1632 Family-friendly company Health promotion/prevention Flexible working time models Supplementary health insurance Support for further education and training Network within the E.ON Group Supplementary health insurance Support for further education and training Network within the E.ON Group VSE NET GmbH | Heinrich-Barth-Straße 17 | 66115 Saarbrücken