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Programmers.io · 1 day ago

Mainframe Programmer

Plano, TX

Contract

Onsite

Mid Level

Programmers.io is seeking a Mainframe Programmer 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 and provides technical expertise for application teams using IMS databases and transaction managers.

Enterprise SoftwareInformation TechnologyManufacturingSoftware

Growth Opportunities

H1B Sponsor Likely

Responsibilities

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

Qualification

IMS installationMaintenancePerformance tuningDatabase administrationAutomation scriptingDisaster recovery planningMainframe storage managementProblem-solving skillsCollaboration skills

Required