Design, develop, maintain, and optimize ADABAS database structures and data solutions. Support mainframe data processing (Natural, COBOL, JCL), perform migrations to modern platforms, tune performance, ensure data integrity/security, troubleshoot issues, and collaborate with developers, architects, and analysts on modernization, API/cloud integration, and data warehousing initiatives.

Lead and stabilize mainframe production operations, handle incident escalation and complex job recovery, coordinate with system programmers and application teams, support change management and disaster recovery, and mentor junior operations staff while improving runbooks and operational processes.