Direct Client Mainframe Programmer Hartford Ct

Mainframe Programmer

Hartford, CT Hybrid Locals preferred

7 months contract

We are looking for candidates who can work on our W2.

No C2C/1099.

The ideal candidate will possess deep technical expertise and the ability to work independently in a fast-paced environment with aggressive project timelines.

• Analyze 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.

• 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.

• 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.

• 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.