Operation, administration, and monitoring of IT systems and applications for integration into central IT services., Execution and monitoring of daily operations and support of the city-wide Enterprise Mobility Management system (EMM) based on Blackberry Unified Endpoint Management and BlackBerry Enterprise Mobility Server., Following operational processes based on ITIL; careful and technically competent execution of difficult operational standard tasks., Design of IT systems, creation and maintenance of IT concepts, operational manuals, and operational documentation., Implementation of IT basic protection measures according to BSI guidelines to ensure information security and data protection., Analysis of the causes of disruptions within incident and problem management; provision of necessary information and development and implementation of problem solutions in 2nd level support., Planning, implementation, and documentation of changes to operating systems (system parameters), system-related software (configurations), and applications within change management, as well as provision of necessary information for all relevant operational processes (incident, problem, change, release management)., Consulting within projects regarding given framework conditions and existing operational requirements with subsequent support of technical (productive) commissioning.