Development, maintenance, care, and third-level support of all specialized applications in compliance with the given framework conditions regarding IT and QM standards as well as budget, time, and quality., Working in agile Scrum teams on the further development of central components of digital administration, including user account, central mailbox, and wallet., Conceiving and developing scalable backend services for the e-government platform based on Java and Spring Boot., Actively contributing to architectural issues, software design, and release processes, and supporting the team in technical decisions., Developing and operating services within a microservice architecture and designing robust interfaces for the platform., Ensuring that backend systems are operated performantly, scalably, and securely., Working with modern platform technologies such as Kubernetes, Helm, and database systems., Working in the area of identity and access management solutions, ideally with standards like OAuth 2.0, OIDC, or SAML, as well as components like Keycloak., Ensuring the quality of solutions through automated tests and modern development processes., Close collaboration with operations, stakeholders, and customer service.