> Markdown version of [/jobs/ext/2237882-mainframe-systems-programmer-mainframe-adabas-administrator](https://www.wearedevelopers.com/jobs/ext/2237882-mainframe-systems-programmer-mainframe-adabas-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Systems Programmer/Mainframe ADABAS Administrator - **Company:** Propertyvalue Russell, Tobin & Associates - **Location:** Los Angeles, CA, United States - **Experience:** Experienced - **Contract:** Temporary contract - **Skills:** Legacy Database, Adaptable Database Systems, Customer Information Control System (CICS), COBOL (Programming Language), Databases, Cron, Extract Transform Load (ETL), Data Warehousing, IBM DB2, Relational Databases, Database Development, Database Storage Structures, Linux, Disaster Recovery, Oracle Application Express, Job Control Language (JCL), Rexx (Programming Language), IBM Information Management System, PostgreSQL, Unix Shell, Logical Data Models, Microsoft SQL Server, MySQL, Operational Databases, Oracle Databases, Oracle (Applications), Standard Sql, PL-SQL, System Software, Web Applications, Batch Scripting, Z/OS, Apex Code, Cloud Platform System, Oracle Enterprise Manager, Database Migration, Information Technology, Performance Monitor - **Published:** August 26, 2026 - **Apply:** https://www.dice.com/job-detail/b41f6ff8-b8cd-49d4-aafa-7043592889ad ## About the Role * Minimum 7 years of experience as a Systems Programmer / DBA. * Minimum 3 years of experience in a lead role. * 4+ years of DBA experience with Oracle, MySQL, PostgreSQL, and Microsoft SQL Server. * 3+ years of experience transferring, validating, and maintaining databases in cloud environments. * Strong experience with ADABAS/NATURAL, DB2, IMS, and IBM z/OS mainframe environments. * Bachelor''s degree in Information Technology, Computer Science, Engineering, or a related field. #LI-GS3 #RTA ## Description * Lead and/or support complex database upgrades, modifications, installations, testing, implementations, maintenance, and enhancements. * Plan, install, configure, test, implement, and manage core database and system software products supporting the organization''s database architecture and business needs. * Support and administer legacy database environments including DB2, IMS, and ADABAS/NATURAL. * Manage IMS hierarchical databases, DB2 relational databases, and ADABAS file-based databases. * Plan and perform database environment upgrades while monitoring overall database health and performance. * Provide technical DBA consulting to application and operations teams for project planning and development. * Perform maintenance and technical reviews on production database systems using ADABAS, DB2, and IMS. * Evaluate, fine-tune, and recommend DBMS software and database solutions. * Consult with development teams on database architecture, logical database design, and physical database design. * Perform database capacity planning, performance monitoring, and space monitoring. * Develop and maintain database backup and recovery procedures. * Perform database reorganizations, replication, compression, and partitioning. * Work with IBM z/OS, IMS, DB2, ADABAS, SMP/E, JCL, IMS DB/DC, CICS, and ACF2. * Utilize Assembler, COBOL, REXX, IBM File Manager, DELTA/IMS, NATURAL/SUPERNAT, ENTIREX, CA SPOOL, IMS/DB2 BMC Tools, and N20/TRIM. * Assess, plan, and execute database migrations to cloud environments. * Transfer, validate, and maintain databases in cloud environments. * Install, configure, and support Oracle Enterprise Edition 19c and 21c on Linux. * Support Oracle databases serving public-facing web applications and internal data warehouses. * Install and configure MySQL and PostgreSQL databases and support Microsoft SQL Server instances. * Configure and support Oracle Application Express (APEX) and Oracle gateways connecting SQL Server, MySQL, and PostgreSQL environments. * Implement and support Oracle Spatial. * Build custom ETL utilities using Cron/Crontab, SQL*Loader, and PL/SQL. * Perform DBA activities including patching, database cloning, backup/recovery, and script development. * Develop scripts using Windows Batch, Unix Shell, and PL/SQL. * Troubleshoot and resolve ETL job issues. ## Related Videos - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [From clicks to cribs - How to find your dream home with web scraping](https://www.wearedevelopers.com/videos/767-from-clicks-to-cribs-how-to-find-your-dream-home-with-web-scraping) - [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Is your backend a hodgepodge of queues, event stores and cron jobs? Durable Execution to the Rescue.](https://www.wearedevelopers.com/videos/744-is-your-backend-a-hodgepodge-of-queues-event-stores-and-cron-jobs-durable-execution-to-the-rescue) - [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Making Data Warehouses Fast: A Developer’s Story](https://www.wearedevelopers.com/magazine/107-making-data-warehouses-fast-a-developer-s-story) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025)