Senior Mainframe Developer: COBOL/IDMS Interface Expert

Intellibee; Des Moines (IA); On-site; USD 90,000 - 130,000; Full time

Job summary

Intellibee in Des Moines, IA is seeking a Mainframe Developer to design, develop, and support mainframe programs and batch processes integrating the legacy ICAR with the new EDEN eligibility system. You will work with business analysts, architects, testers, and technical teams to implement interface updates and ensure data integrity during modernization.

The role focuses on COBOL/JCL, IDMS integration, and batch workflow enhancements to enable seamless data exchange between systems, with

Qualifications

• Strong COBOL, JCL, and batch processing expertise.
• Experience 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.

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.

Skills

COBOL programming

JCL

VSAM datasets

IDMS database development

Batch processing

Flat file design

Data transformation

GDG management

FTP/SFTP processing

Scheduling tools (CA7/Control-M)

File transfer automation

Multi-system data integration

Technical specification interpretation

Root cause analysis

Tools

CA7

Control-M

Job description

Intellibee in Des Moines, IA is seeking a Mainframe Developer to design, develop, and support mainframe programs and batch processes integrating the legacy ICAR with the new EDEN eligibility system. You will work with business analysts, architects, testers, and technical teams to implement interface updates and ensure data integrity during modernization.

The role focuses on COBOL/JCL, IDMS integration, and batch workflow enhancements to enable seamless data exchange between systems, with