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Realign Logo Realign · IT - Software Development

Mainframe IMS System Programmer

United States, Plano 150000.00 USD / Year · Job Posted March 21, 2026
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Job Description

The IMS System Programmer is responsible for the installation, customization, maintenance, and support of IBM’s Information Management System (IMS) environment on the z/OS mainframe platform. The role ensures high availability, performance, and security of IMS subsystems, coordinates system upgrades, and provides technical expertise for application teams using IMS databases and transaction managers.

Requirements

  • Install, configure, and maintain IMS (DB and TM) subsystems, tools, and associated products (e.g., IMS Connect, IMS Tools, ODBM, BMPs)
  • Perform system upgrades, maintenance (APARs/PTFs), and migrations to newer IMS versions
  • Manage SMP/E environments for maintenance and software installation
  • Ensure compatibility between IMS, z/OS, DB2, CICS, and related products
  • Monitor IMS system performance and tune parameters for optimal throughput and response times
  • Conduct capacity planning and growth analysis to ensure scalability and reliability
  • Utilize tools like OMEGAMON, Mainview, or RMF for performance tracking and problem diagnosis
  • Provide Level 3 technical support for IMS incidents and system abends
  • Diagnose and resolve IMS database recovery, log, and buffer issues
  • Collaborate with IBM support (PMRs, cases) for complex issues and patches
  • Support IMS DBA and application teams with DBD, PSB, and ACBGEN processes
  • Maintain IMS catalog and RECON datasets
  • ensure proper backup/recovery strategy
  • Manage IMS utilities such as DFSURGU0, DFSURWF0, and HALDB tools
  • Develop and maintain automation scripts using REXX, CLIST, or JCL for operational efficiency
  • Integrate IMS with monitoring tools, scheduling systems, and middleware (MQ, Connect)
  • Support modernization initiatives such as IMS Open Database or REST API integration
  • Participate in DR planning, testing, and documentation of IMS recovery procedures
  • Ensure adherence to change management, audit, and compliance standards
  • Maintain detailed system configuration and maintenance documentation
  • Provide mentorship to junior system programmers and cross-train peers
  • Work closely with database administrators, application developers, and infrastructure teams

Nice to have

  • Experience with IMS integration to distributed systems (IMS Connect, JDBC, ODBM)
  • Familiarity with z/OSMF, z/OS Connect EE, or API enablement initiatives
  • Knowledge of mainframe storage management (DFSMS, VSAM)
  • Strong problem-solving, debugging, and performance analysis skills
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