Mainframe Developer

Overview:

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