Mainframe Systems Programer

Job id: Mainframe

Mainframe Programmer/ Developer

Location: Hybrid- 55 Farmington Avenue Hartford Connecticut

Client: CT DSS

Duration: 06 months

Job Description:

• Analyse existing mainframe applications databases files and batch processing workflows to support migration activities.
• Design develop and execute data extraction processes from IMS databases and legacy mainframe data sources.
• Create modify and support JCL required for data extracts file transfers conversion processing and migration testing.
• Perform COBOL program analysis and code modifications to support data extraction transformation validation and reconciliation requirements.
• Review and update FTP/SFTP processes to support secure transmission of migration files between source and target environments.
• Utilize IMS utilities and BMC Utilities for IMS to unload extract validate and reconcile database content.
• Develop and execute data validation and reconciliation procedures to ensure data integrity throughout the migration lifecycle.
• Support file mapping field-level transformation logic and data conversion specifications.
• Troubleshoot batch failures abends data discrepancies and performance issues related to migration processing.
• Collaborate with database administrators architects business analysts and project teams to define migration requirements and resolve technical challenges.
• Create technical documentation migration runbooks implementation procedures and production support documentation.
• Participate in migration testing system integration testing user acceptance testing and production implementation activities.
• Provide production support during migration cutover and post-implementation stabilization periods.
• Identify opportunities for automation using CLIST REXX File-AID and other mainframe utilities.
• Ensure compliance with enterprise change management security and audit requirements.
• Required Qualifications
• 10 years of Mainframe Development experience.
• Expert-level COBOL programming experience.
• Strong JCL development and troubleshooting skills.
• Extensive IMS Database experience.
• Experience with BMC Utilities for IMS.
• Experience developing large-scale data extracts and conversion processes.
• Strong understanding of FTP/SFTP file transfer methodologies.
• Proven experience supporting enterprise data migration or modernization initiatives.
• Experience performing data analysis reconciliation and validation.
• Ability to work independently with minimal supervision in a deadline-driven environment.
• Preferred Qualifications
• Experience with File-AID.
• Experience with EZtrieve.
• Experience with CLIST and REXX automation.
• Prior experience with legacy modernization or cloud migration projects.
• Experience supporting financial services insurance healthcare or government mainframe environments.
• Critical Success Factors
• Ability to quickly assess complex legacy environments.
• Strong problem-solving and troubleshooting capabilities.
• Excellent communication and documentation skills.
• Ability to meet aggressive deadlines and deliver high-quality migration solutions under tight timelines.