Develop, maintain, and support all specialist applications in accordance with IT and QM standards, as well as budget, time, and quality requirements., Work in agile Scrum teams on the further development of central components for digital administration, including user accounts, central mailboxes, and wallets., Design and develop scalable backend services for the e-government platform based on Java and Spring Boot., Actively contribute to architectural questions, software design, and release processes, and support the team in technical decisions., Develop and operate services within a microservice architecture and design robust interfaces for the platform., Ensure that backend systems are operated performantly, scalably, and securely., Work with modern platform technologies such as Kubernetes, Helm, and database systems., Operate in the environment of identity and access management solutions and ideally work with standards like OAuth2, OIDC, or SAML, as well as components like Keycloak., Ensure the quality of solutions through automated tests and modern development processes., Collaborate closely with operations, stakeholders, and customer service.