Mainframe Developer IV

Compunnel

$120K — $145K *
Finance & Insurance
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 7+ years of mainframe development experience
  • Strong experience with COBOL, JCL, DB2, VSAM, and CICS
  • Experience in batch processing and scheduling tools like Control-M
  • Knowledge of MQ Series and either Easytrieve or REXX
  • Understanding of EBCDIC and online transaction processing
  • Experience with Oracle Database and CI/CD practices
  • Strong troubleshooting abilities with a focus on root-cause analysis

Responsibilities

  • Develop, test, and implement enhancements for the Automated Cash Management platform
  • Build and maintain applications on COBOL, JCL, DB2, VSAM, and CICS
  • Modernize legacy applications by migrating to Java-based solutions
  • Support and troubleshoot batch processes using Control-M
  • Resolve production issues and perform root-cause analysis
  • Contribute to modernization initiatives with API enablement and data virtualization
  • Collaborate with various teams including product, business, and offshore development

Benefits

  • Opportunity to work in a complex financial services environment
  • Involvement in cutting-edge modernization technologies
  • Collaborative work culture across global teams
  • Potential for professional growth in mainframe and modern development practices
  • Access to AI-assisted development tools for efficiency enhancement
Full Job Description
Job Summary:

We are seeking an experienced Mainframe Developer to maintain, modernize, and enhance an Automated Cash Management platform within a complex financial services environment. The role combines hands-on mainframe development and production support in a batch-oriented environment, with a focus on COBOL, JCL, DB2, VSAM, and CICS. The ideal candidate will also contribute to legacy modernization initiatives involving Java, CI/CD, APIs, cloud, and hybrid integration.

Key Responsibilities
• Develop, test, and implement enhancements for the Automated Cash Management platform.
• Build and maintain applications using COBOL, JCL, DB2, VSAM, and CICS.
• Modernize legacy applications by migrating or integrating functionality with Java-based solutions.
• Work with Oracle Database as part of application development and data processing activities.
• Support and troubleshoot batch processes using Control-M and related scheduling tools.
• Resolve production issues and perform root-cause analysis to improve application stability.
• Work with batch scheduling, file-based data flows, EBCDIC data, and online transaction processing.
• Support messaging and mainframe utilities including MQ Series and Easytrieve or REXX.
• Use Endevor, GitLab, and CI/CD practices for source control and software delivery.
• Contribute to modernization initiatives involving API enablement, data virtualization, cloud, and hybrid integration.
• Collaborate with product, business, support, and offshore development teams.
• Contribute to the responsible use of AI-assisted development tools such as Windsurf, Codex, and Claude Code.
• Maintain technical documentation and support knowledge transfer across global teams.

Required Qualifications
• 7+ years of mainframe development experience.
• Strong hands-on experience with COBOL, JCL, DB2, VSAM, and CICS.
• Experience with batch processing, Control-M, batch scheduling, and file-based data flows.
• Experience with MQ Series and either Easytrieve or REXX.
• Understanding of EBCDIC and online transaction processing.
• Experience with Oracle Database.
• Experience with Endevor, GitLab, and CI/CD practices.
• Strong production support and troubleshooting experience, including root-cause analysis.
• Experience working with Java for legacy modernization initiatives.
• Strong collaboration and communication skills with the ability to work across product, business, support, and global development teams.

Preferred Qualifications
• Financial services experience.
• Experience with API enablement, data virtualization, cloud-hybrid integration, or other mainframe modernization initiatives.
• Experience using AI-assisted software development tools such as Windsurf, Codex, or Claude Code.

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