full-time

Application Operation and Maintenance Specialist (REF5123I)

Posted by Deutsche Telekom IT Solutions • Debrecen, Debrecen, Hungary

📍 Debrecen, Debrecen 🕒 February 28, 2026

About the Role

Job Description

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.

Qualifications

Qualifications

  • 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 OR English language for daily communi...

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