Mainframe Developer

Job Title: Mainframe Developer

Location: Onsite - Omaha NE / Remote
Experience Required: 10 Years
Employment Type: Contract

Role Overview

We are seeking a highly experienced Mainframe Developer to support modernize and maintain enterprise mainframe applications. This role involves hands-on development production support and participation in modernization and decommissioning initiatives for legacy mainframe systems. The ideal candidate has deep technical expertise strong problem-solving skills and experience operating in mission-critical environments.

Key Responsibilities

Mainframe Development & Modernization

• Design develop and enhance COBOL-based mainframe applications to support system improvements.

• Contribute to mainframe modernization and decommissioning efforts including refactoring and system transitions.

Production & Batch Support

• Provide production support including incident resolution and root-cause analysis.

• Perform batch job monitoring and support ensuring successful and timely processing.

• Participate in firecall/on-call support rotations to address critical production issues.

System Operations & Maintenance

• Maintain and troubleshoot applications using DB2 VSAM JCL and CICS.

• Ensure application stability performance and data integrity across mainframe systems.

Collaboration & Documentation

• Work closely with cross-functional teams to deliver high-quality solutions.

• Document technical changes support procedures and operational runbooks.

Required Skills & Qualifications

• 10 years of hands-on experience as a Mainframe Developer.

• Strong expertise in Enterprise COBOL JCL DB2 VSAM and CICS.

• Experience with batch processing scheduling and monitoring.

• Hands-on experience with Topaz or similar mainframe development tools.

• Proven experience supporting production environments and handling critical incidents.

• Strong analytical troubleshooting and communication skills.

Key Competencies

• Ability to work independently and in distributed teams

• Strong ownership of application stability and support

• Adaptability to modernization initiatives and evolving technologies

• Calm and effective response in high-pressure production situations

Technical Skills

Enterprise COBOL JCL DB2 VSAM CICS System Z Batch Processing Topaz Mainframe Modernization Production Support