Mainframe System DBA; m​/w​/d

Job Title

Mainframe System DBA (m/w/d)

Provide technical and operational support for a large IBM Mainframe Db2 infrastructure within a highly technical, global IBM Mainframe environment. z/OS and ISV System Administration.

• Manage all aspects of Db2 z/OS system programming administration.
• Maintain USS objects for Db2 and related products. Create, modify, or maintain custom‑developed CLIST and REXX utilities.
• Install Db2 for z/OS, apply Db2 for z/OS maintenance, and install Db2‑related tools.
• Participate in an on‑call rotation to provide 24/7 operational support.
• Create database backups and perform database recoveries as required. Troubleshoot service issues, identify root causes, and provide solutions.
• Monitor the performance of database subsystems and devise solutions for performance‑related issues.
• Ensure compliance with database policies and procedures.
• Support and participate in disaster recovery exercises. Serve as the primary point of contact for support from Db2 tool vendors (IBM, Broadcom, Insoft, etc.)

• More than 5 years of production support experience for Db2 z/OS, including Data Sharing, Db2 Connect, and IIDR CDC.
• Strong proficiency in JCL, DDL, DML, SMP/E, TSO, z/OS Assembler, REXX, and CLISTs.
• Mastery of CA/Broadcom Db2 tools and utilities such as CA‑Insight, IBM Info Sphere Optim, and IBM Data Capture.
• Experience with RACF, HSM, USS, and Workload Manager in the context of Db2 z/OS.
• Database performance monitoring and optimization.
• The ability to work independently and maintain a strong solutions‑oriented approach.

• Ability to speak fluent German.

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.