Mainframe Developer

Intellibee Inc; Des Moines (IA); Presencial; USD 90.000 - 120.000; Jornada completa

Descripción de la vacante

Intellibee Inc. in Des Moines, IA seeks a skilled Mainframe Developer to maintain and extend COBOL/JCL programs that handle critical interfaces between ICAR and EDEN. You will analyze requirements, modify data mappings, and support batch processing in a modernization effort.

The role focuses on mainframe application development, IDMS/VSAM data work, and integration touchpoints, with a strong emphasis on data quality and timely deployments in a government-related modernization program.

Formación

• Hands-on mainframe development experience.
• Strong expertise in COBOL, JCL, and batch processing.
• Experience with IDMS or similar mainframe databases.
• Experience with VSAM datasets and file-processing apps.
• Proven ability to analyze and modify legacy systems.
• Excellent verbal and written communication; team player.

Responsabilidades

• Develop, enhance, and maintain COBOL/JCL programs for ICAR-EDEN interfaces.
• Modify layouts, mappings, and validation logic to support requirements.
• Improve batch workflows, GDG structures, and VSAM datasets.
• Support modernization by EDEN-derived data replacement.
• Troubleshoot production interfaces and ensure data quality.

Conocimientos

COBOL programming

JCL

VSAM datasets

IDMS DB development

Batch processing

Data mapping

GDG management

FTP/SFTP

File transfer

Legacy modernization

IDMS COBOL integration

Schema concepts

Herramientas

CA7

Control-M

REPRO/DEFINE

ADS/O

VSAM indexing

IDMS

Descripción del empleo

Mainframe Developer

Mainframe Developer, Des Moines, IA, US

Position Summary

The State is undertaking a modernization initiative to replace an aging eligibility platform with a new statewide eligibility system (EDEN). As part of this effort, the legacy Child Support Enforcement system (ICAR) must continue to exchange critical data with the new platform through a series of file-based interfaces and batch processes.

Key Responsibilities

Mainframe Application Development

• 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.

Technical Analysis and Design

• Translate business and functional requirements into technical design specifications.
• Analyze existing mainframe applications and integration points to determine impacts 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 parallel operation of legacy and modern systems.
• Create and maintain technical documentation, process flows, program specifications, and interface designs.

Testing and Quality Assurance

• 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.

Deployment and Operational Support

• 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.

Collaboration and Communication

• 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 Technical Skills

Mainframe Development

• COBOL programming
• JCL (Job Control Language)
• VSAM datasets, indexing, REPRO/DEFINE utilities
• IDMS database development and support
• Schema/Subschema concepts
• Database navigation
• ADS/O experience preferred
• IDMS COBOL integration
• Batch processing development and support
• Flat file design and parsing
• Data transformation and interface mapping

Batch Processing and Infrastructure

• GDG management and dataset lifecycle administration
• FTP/SFTP processing and troubleshooting
• File transfer automation
• Scheduling tools such as: CA7, Control-M, Equivalent enterprise scheduling platforms

Integration and Analysis

• Legacy system modernization experience
• Multi-system data integration and interface support
• Technical specification interpretation
• Root cause analysis and troubleshooting
• Data mapping and transformation logic
• Strong analytical and problem-solving skills

Required Qualifications

• Hands-on mainframe development experience.
• 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.

Success Criteria

• Deliver high-quality mainframe code and interface enhancements.
• Support reliable data exchange between ICAR and EDEN.
• Minimize disruption during legacy-to-modern system transition activities.
• Contribute to successful testing, deployment, and production support efforts.
• Maintain system stability while enabling modernization objectives.

The Selected Candidate Will Successfully

• Deliver high-quality mainframe code and interface enhancements.
• Support reliable data exchange between ICAR and EDEN.
• Minimize disruption during legacy-to-modern system transition activities.
• Contribute to successful testing, deployment, and production support efforts.
• Maintain system stability while enabling modernization objectives.

Skill Matrix

• COBOL programming Required 3 Years
• JCL (Job Control Language) Required 3 Years
• VSAM datasets, indexing, REPRO/DEFINE utilities Required 3 Years
• IDMS database development and support Required 3 Years
• Batch processing development and support Required 3 Years
• Flat file design and parsing Required 3 Years
• Data transformation and interface mapping Required 3 Years
• GDG management and dataset lifecycle administration Required 3 Years
• FTP/SFTP processing and troubleshooting Required 3 Years
• File transfer automation Required 3 Years
• Scheduling tools such as: CA7, Control-M, Equivalent enterprise scheduling platforms Required 3 Years
• Legacy system modernization experience Required 3 Years
• Multi-system data integration and interface support Required 3 Years
• Technical specification interpretation Required 3 Years
• Root cause analysis and troubleshooting Required 3 Years
• Data mapping and transformation logic Required 3 Years
• Strong expertise in COBOL, JCL, and batch processing. Required 3 Years
• Experience working with IDMS or comparable mainframe database technologies. Required 3 Years
• Experience with VSAM datasets and file-processing applications. Required 3 Years
• Demonstrated experience supporting application integrations and data exchange processes Required 3 Years
• Experience analyzing and modifying legacy systems. Required 3 Years
• Strong verbal and written communication skills. Required 3 Years
• Ability to work independently and collaboratively in a team environment. Required 3 Years
• Experience supporting Child Support Enforcement systems or Human Services programs. Highly desired
• Experience with eligibility systems, public assistance systems, or government modernization initiatives. Highly desired
• Experience with large-scale legacy modernization projects. Highly desired
• Knowledge of production support, release management, and deployment practices. Highly desired
• Experience working in Agile or hybrid project environments. Highly desired

Date Posted:10-Nov-2026