Z​/OS Programmer

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Job # 10174 – Posted 1/24/2023 – Downey, CA

A Mainframe Programmer is responsible for leading and/or supporting the most complex database upgrade projects, modification, installation, testing, implementation, maintenance and enhancements of new or existing system software products. This classification must plan, install, configure, test, implement and manage core database products. Special organizational or functional industry position titles for Systems Programmer/DBA include, but are not limited to, DB2 Systems Programmer/DBA, IMS Systems Programmer/DBA and ADABAS/NATURAL Systems Programmer/DBA.

The Mainframe Programmer manages different types of databases, such as hierarchical (IMS), relational (DB2), and file-based (ADABAS), and is responsible for planning and upgrading the database environments on a County-established basis; verifying the health of all the databases; providing database administration technical consulting for application and operations teams for the purpose of project planning/development; maintaining production database systems; performing technical reviews for existing systems that utilize one of the following database management systems (DBMS): ADABAS, DB2 or IMS;

evaluating for the purposes of selecting new or fine-tuning existing DBMS software; consulting with project development teams to provide recommendations on database design; developing logical and physical database designs; creating overviews of logical database designs; creating physical databases; planning database capacity; developing and using backup and recovery procedures for databases; monitoring database performance; monitoring database space; performing database reorganizations; performing database replication;

performing database compression and partitioning.

IBM: Z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, CICS, ACF2, ASSEMBLER/COBOL/REXX, IBM FILE MANAGER, DELTA/IMS, NATURAL/SUPERNAT, ENTIREX, CA SPOOL, IMS & DB2 BMC Tools, N20/TRIM.

VTAM, TCPIP, HCD, SMPE, AT‑TLS and Mainframe hardware knowledge.

Minimum of seven (7) years of experience as a Systems Programming/DBA, with at least three (3) years of that experience in a lead role.

Bachelor’s degree in an IT‑related or engineering field.

Please send your resume and any additional information to our recruitment team at