Mainframe Administrator ( REF5422C)

Job description

Provide high-level (2nd and 3rd level) support and maintenance for a Mainframe-based application, ensuring maximum uptime and performance. Conduct troubleshooting and root cause analysis, implementing solutions to ensure system reliability and availability. Manage incidents, change requests, and maintain system performance and stability in collaboration with the maintenance team. Perform regular checks and preventive maintenance tasks. Collaborate closely with the development team to implement long-term solutions and improvements. Senior experience in Mainframe environments, particularly in application maintenance and operational support. Strong ticket handling skills Excellent analytical and problem-solving skills. Proficiency in the German language for daily communication and documentation. Preferred Skills: Strong track record in 2nd and 3rd level operational support roles. Effective teamwork and collaboration skills with cross-functional teams. * Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation. As Hungary’s most attractive employer in 2025 (according to Randstad’s representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries. DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.