Mainframe Systems Programmer/Mainframe Database Administrator (DBA)

A Mainframe Systems Programmer/DBA 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, software products in support of the County's database architecture and business needs. 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 Systems Programmer/DBA for Legacy Systems 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; database administration technical consulting for application and operations teams for the purpose of project planning/development; maintenance on production database systems; performance of technical reviews for existing systems that utilize one of the following database management systems (DBMS): ADABAS, DB2 or IMS; performance of evaluations for the purposes of selecting new or fine-tuning existing DBMS software; consultation with project development teams to provide recommendations on database design; development of logical and physical database designs; creation of overviews of logical database designs; creation of physical databases; database capacity planning; development and use of backup and recovery procedures for databases; database performance monitoring; database space monitoring; database reorganizations; database replication; database compression and database partitioning. The following technology skill sets are required to perform in this classification. 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.

Skills in assessing, planning and migrating DBs to Cloud Environment Skills in transferring, validating and maintaining DBs in a Cloud environment Skills in Installing, Configuring and Supporting Oracle Enterprise Edition Database 19c as a backend for both public facing web applications and internal data warehousing on Linux operating system. Skills in Installing and configuring MySQL and PostgreSQL databases. Skills in Installing and Supporting Microsoft SQL server instances. knowledge in Configuring and supporting Oracle gateways connecting SQL Server, MySQL and PostgreSQL server instances to the Oracle database. knowledge in Oracle Spatial implementation and support. Mastery in building custom extracts, transform and load (ETL) utilities with Crons, SQLLoader and PL/SQL. Skills in Database Administration services such as patch install, cloning, backup and recovery of databases and script development (Unix shell scripting and PL/SQL). Skills in Troubleshooting and resolution of ETL Jobs

This classification must have a 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.

4+ years of DB Administration experience, specifically in an Oracle/MySQL/PostgreSQL environments. 3+ years of experience in transferring, validating, maintaining DBs in cloud environment.

This classification requires the possession of a bachelor's degree in an IT-related or engineering field.