Job Summary:
The Mainframe Developer will design, develop, modify, test, and support mainframe programs and batch processes that facilitate integration between the legacy Child Support Enforcement system (ICAR) and the new Eligibility Determination system (EDEN). The role involves working closely with business analysts, architects, testers, and technical teams to implement interface updates, maintain data integrity, and support the transition from legacy data sources to modernized eligibility services.
Key Responsibilities:
• Develop, enhance, and maintain COBOL and JCL programs that process interface files between ICAR and EDEN.
• Modify file layouts, data mappings, transformation logic, and validation routines based on business and technical requirements.
• Enhance batch processing workflows, GDG structures, and VSAM datasets to support evolving integration requirements.
• Support modernization efforts by replacing legacy eligibility data sources with EDEN-derived data.
• Maintain and troubleshoot existing production processes and interfaces.
• Translate business and functional requirements into technical design specifications.
• Analyze existing mainframe applications and integration points to determine the impact of system changes.
• Modify and support applications that interact with IDMS databases, including schema and subschema navigation.
• Perform detailed record-level and field-level analysis of inbound and outbound interfaces.
• Identify dependencies, integration touchpoints, and risks associated with the parallel operation of legacy and modern systems.
• Create and maintain technical documentation, process flows, program specifications, and interface designs.
• Develop unit test scenarios and execute comprehensive testing of mainframe applications and batch jobs.
• Support system, integration, regression, and user acceptance testing activities.
• Investigate and resolve defects identified during testing cycles.
• Validate end-to-end data processing and file exchanges between systems.
• Ensure data quality, processing accuracy, and compliance with business requirements.
• Create and maintain JCL, procedures (PROCs), scheduling definitions, and operational documentation.
• Support implementation, migration, and production deployment activities.
• Assist with cutover planning and execution during modernization milestones.
• Troubleshoot production incidents, file processing failures, and data discrepancies.
• Develop operational runbooks, monitoring procedures, and post-deployment support documentation.
• Partner with project managers, business analysts, developers, testers, and business stakeholders.
• Participate in design reviews, technical walkthroughs, sprint planning, and status meetings.
• Communicate technical risks, issues, dependencies, and recommendations proactively.
• Support knowledge transfer activities and contribute to project documentation.
Required Qualifications:
• 3+ years of experience in COBOL programming.
• 3+ years of experience with JCL (Job Control Language).
• 3+ years of experience with VSAM datasets, indexing, and REPRO/DEFINE utilities.
• 3+ years of experience in IDMS database development and support.
• 3+ years of experience developing and supporting batch processing applications.
• 3+ years of experience with flat file design and parsing.
• 3+ years of experience with data transformation and interface mapping.
• 3+ years of experience with GDG management and dataset lifecycle administration.
• 3+ years of experience with FTP/SFTP processing, troubleshooting, and file transfer automation.
• 3+ years of experience with enterprise scheduling tools such as CA7, Control-M, or equivalent platforms.
• 3+ years of experience supporting legacy system modernization initiatives.
• 3+ years of experience with multi-system data integration and interface support.
• 3+ years of experience interpreting technical specifications and implementing data mapping and transformation logic.
• 3+ years of experience in root cause analysis and troubleshooting.
• Strong expertise in COBOL, JCL, and batch processing.
• Experience working with IDMS or comparable mainframe database technologies.
• Experience with VSAM datasets and file-processing applications.
• Demonstrated experience supporting application integrations and data exchange processes.
• Experience analyzing and modifying legacy systems.
• Strong verbal and written communication skills.
• Ability to work independently and collaboratively in a team environment.
Preferred Qualifications:
• Experience supporting Child Support Enforcement systems or Human Services programs.
• Experience with eligibility systems, public assistance systems, or government modernization initiatives.
• Experience with large-scale legacy modernization projects.
• Knowledge of production support, release management, and deployment practices.
• Experience working in Agile or hybrid project environments.
