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Mainframe Developer

  • Mainframe Developer job type Posted on: Nov 12, 2026
  • Mainframe Developer experience level Smart IMS Inc
  • Mainframe Developer employment type Des Moines, Iowa
  • Mainframe Developer salary Salary: $40 per hour
  • Mainframe Developer employment type Onsite
  • Mainframe Developer salary CTC
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Job Title :

Mainframe Developer

Job Type :

Contract

Job Location :

Des Moines Iowa United States

Remote :

No

Jobcon Logo Job Description :

Job Title: Mainframe Developer
Duration (Contract): 7 Months
Client Location: Des Moines, IA 50319
Location Preference: Remote
Job Description:
As a Mainframe Developer, you will support enterprise modernization efforts by developing, maintaining, and enhancing mainframe applications and interfaces that enable seamless data exchange between legacy and modern systems. This role focuses on COBOL development, batch processing, data integration, testing, deployment, and production support.
Key Responsibilities:
  • Develop, enhance, and maintain COBOL and JCL programs supporting enterprise integrations.
  • Modify file layouts, data mappings, transformation logic, and validation routines.
  • Support batch processing workflows, GDG structures, and VSAM datasets.
  • Analyze business requirements and translate them into technical specifications.
  • Perform impact analysis of application and integration changes.
  • Develop and execute unit, integration, regression, and user acceptance testing activities.
  • Troubleshoot production issues, file processing failures, and data discrepancies.
  • Support deployment, migration, and modernization initiatives.
  • Create and maintain technical documentation, process flows, and operational procedures.
  • Collaborate with business analysts, developers, testers, and project stakeholders throughout the project lifecycle.
Required Skills, Experiences, Education, and Competencies:
  • Strong hands-on experience with COBOL programming and JCL development.
  • Experience working with IDMS databases, including schema/subschema concepts and database navigation.
  • Experience with VSAM datasets, file processing, and batch processing systems.
  • Knowledge of GDG management, file transfers, and enterprise scheduling tools such as CA7 or Control-M.
  • Experience supporting system integrations, data mapping, and interface development.
  • Strong understanding of legacy system modernization and migration initiatives.
  • Experience performing root cause analysis, troubleshooting, and production support.
  • Ability to interpret technical specifications and develop scalable solutions.
  • Strong analytical, problem-solving, verbal, and written communication skills.
  • Experience working independently and collaboratively in Agile or hybrid project environments.
The hourly range for roles of this nature are $40.00 to $60.00/hr. Rates are heavily dependent on skills, experience, location, and industry.
cyberThink is an Equal Opportunity Employer.

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Jobcon Logo Position Details

Posted:

Nov 12, 2026

Reference Number:

95346-45036

Employment:

CTC

Salary:

$40 per hour

City:

Des Moines

Job Origin:

CIEPAL_ORGANIC_FEED

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Job Title: Mainframe Developer
Duration (Contract): 7 Months
Client Location: Des Moines, IA 50319
Location Preference: Remote
Job Description:
As a Mainframe Developer, you will support enterprise modernization efforts by developing, maintaining, and enhancing mainframe applications and interfaces that enable seamless data exchange between legacy and modern systems. This role focuses on COBOL development, batch processing, data integration, testing, deployment, and production support.
Key Responsibilities:
  • Develop, enhance, and maintain COBOL and JCL programs supporting enterprise integrations.
  • Modify file layouts, data mappings, transformation logic, and validation routines.
  • Support batch processing workflows, GDG structures, and VSAM datasets.
  • Analyze business requirements and translate them into technical specifications.
  • Perform impact analysis of application and integration changes.
  • Develop and execute unit, integration, regression, and user acceptance testing activities.
  • Troubleshoot production issues, file processing failures, and data discrepancies.
  • Support deployment, migration, and modernization initiatives.
  • Create and maintain technical documentation, process flows, and operational procedures.
  • Collaborate with business analysts, developers, testers, and project stakeholders throughout the project lifecycle.
Required Skills, Experiences, Education, and Competencies:
  • Strong hands-on experience with COBOL programming and JCL development.
  • Experience working with IDMS databases, including schema/subschema concepts and database navigation.
  • Experience with VSAM datasets, file processing, and batch processing systems.
  • Knowledge of GDG management, file transfers, and enterprise scheduling tools such as CA7 or Control-M.
  • Experience supporting system integrations, data mapping, and interface development.
  • Strong understanding of legacy system modernization and migration initiatives.
  • Experience performing root cause analysis, troubleshooting, and production support.
  • Ability to interpret technical specifications and develop scalable solutions.
  • Strong analytical, problem-solving, verbal, and written communication skills.
  • Experience working independently and collaboratively in Agile or hybrid project environments.
The hourly range for roles of this nature are $40.00 to $60.00/hr. Rates are heavily dependent on skills, experience, location, and industry.
cyberThink is an Equal Opportunity Employer.

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