Haystack
← Back to Jobs
Technology
ST

Mainframe Systems Programmer (DBA) - Los Angeles, CA

Shiro TechnologiesLos Angeles, CA🇺🇸United StatesPosted 27 Aug 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Los Angeles, CA, United States
Posted
Yesterday
ExpressMySQLOraclePL/SQLSQLSQL ServerShellETLCOBOLPostgreSQL

Job Description

We are seeking a highly experienced Mainframe Systems Programmer / DBA to lead and support complex database upgrade projects, modifications, installations, testing, implementations, maintenance, and enhancements of new and existing system software products.

Required Skills

Manage hierarchical (IMS), relational (DB2), and file-based (ADABAS) databases.

Plan and execute database environment upgrades and migrations.

Monitor and verify database health, performance, and capacity.

Provide database administration consulting to application development and operations teams.

Perform technical reviews and evaluations of existing DBMS environments.

Provide database design recommendations to project teams.

Develop logical and physical database designs.

Create physical databases and logical database overviews.

Perform database capacity planning.

Develop and maintain backup and recovery procedures.

Perform database performance and space monitoring.

Conduct database reorganizations, replication, compression, and partitioning.

Support production database environments and complex database projects.

Mainframe Technology Skills

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

Additional Skills

Assessing, planning, and migrating databases to cloud environments.

Transferring, validating, and maintaining databases in cloud environments.

Installing, configuring, and supporting Oracle Enterprise Edition 19c and 21c on Linux.

Supporting Oracle databases as backends for public-facing web applications and internal data warehousing.

Installing and configuring MySQL and PostgreSQL databases.

Installing and supporting Microsoft SQL Server instances.

Configuring and supporting Oracle Application Express (APEX).

Configuring Oracle gateways connecting SQL Server, MySQL, and PostgreSQL instances to Oracle databases.

Oracle Spatial implementation and support.

Building custom ETL utilities using cron/crontab, SQLLoader, and PL/SQL.

Database administration including patch installation, cloning, backup/recovery, and script development.

Windows batch scripting, Unix shell scripting, and PL/SQL.

Troubleshooting and resolving ETL job issues.

Setting up and supporting connectivity to remote database servers using Stelo Data Replication software.

Monitoring and troubleshooting full and incremental data transfers.

Experience Required

Minimum 7 years of experience as a Systems Programmer / DBA.

At least 3 years of experience in a lead role.

4+ years of database administration experience in Oracle, MySQL, PostgreSQL, and/or Microsoft SQL Server environments.

3+ years of experience transferring, validating, and maintaining databases in cloud environments.

5+ years of experience utilizing StarQuest Stelo Data Replication software.

Similar jobs