Cards Mainframe Developer

We are looking for Cards Mainframe Developer for our client in Chicago, IL

Job Title: Cards Mainframe Developer

Job Location: Chicago, IL

Job Type: Contract

Job Overview:

Pay Range: $38hr - $43hr

Requirement/Must Have:

• 1+ years of hands-on experience in Mainframe technologies: COBOL, JCL, VSAM, DB2.
• Solid expertise in Unix/Linux Shell Scripting.
• Strong SQL and PLSQL skills: procedures, functions, triggers, packages.
• Experience integrating shell scripts with relational databases.
• Strong debugging, analytical, and problem-solving skills.
• Good understanding of batch processing and automation workflows.
• Ability to work independently and collaboratively within a team.

Responsibilities:

• Develop, enhance, and maintain applications using COBOL, JCL, VSAM, and DB2.
• Troubleshoot, debug, and resolve mainframe application issues across development, testing, and production environments.
• Optimize JCL, COBOL programs, and DB2 queries to improve system performance and efficiency.
• Support daily batch processing, ensure job success, and resolve job abends promptly.
• Develop and maintain Unix/Linux Shell Scripts for automation, batch scheduling, and system integrations.
• Ensure seamless integration between Unix-based automation and mainframe backend systems.
• Troubleshoot and enhance existing scripts, improving stability and execution performance.
• Develop and maintain PLSQL procedures, functions, packages, and triggers.
• Perform SQL tuning and optimize database queries for performance.
• Integrate shell scripts with relational databases: Oracle, DB2, MySQL, or similar.
• Monitor scheduled jobs, resolve production incidents, and ensure overall batch stability.
• Conduct root-cause analysis (RCA) and implement permanent fixes.
• Enhance performance of scripts, jobs, and database queries through continuous tuning.
• Work closely with stakeholders to gather requirements and translate them into scalable solutions.
• Participate in Agile ceremonies and collaborate with QA, business, and support teams.
• Create and maintain technical documentation including design specs, support guides, and system documentation.

Nice to Have:

• Experience in banking, cards, or financial services domains.
• Experience with ticketing tools and production support processes.
• Familiarity with Git, CI/CD pipelines, or DevOps practices.
• Knowledge of Python or Java for extended automation or backend integrations.
• Additional mainframe skills such as COBOL, PLI, Assembler, CICS, IMS, and system administration on DB2/CICS/IMS.
• REXX scripting for automation and migration tasks.
• Strong troubleshooting skills for IBM mainframe product-related issues.