Cards Mainframe Developer

Job Description: Mainframe Developer (4 to 8 Years Experience)

We are looking for an experienced Mainframe Developer with strong expertise in COBOL JCL DB2 VSAM and Unix Shell Scripting. The ideal candidate will be responsible for developing supporting and optimizing mainframe applications building automation scripts managing backend integration workflows and ensuring reliability across production and batch systems. This role requires strong technical skills problem-solving capabilities and the ability to work effectively with cross-functional teams.

Key Responsibilities

Mainframe Development & Support
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.

Unix Shell Scripting & Backend Integration
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.

Database & PL/SQL Development
Develop and maintain PL/SQL 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).

Production Support & Performance Optimization
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.

Collaboration & Documentation
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.

Required Technical Skills

Strong hands-on experience in Mainframe technologies: COBOL JCL VSAM DB2.
Solid expertise in Unix/Linux Shell Scripting.
Strong SQL and PL/SQL 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.

Preferred / Good 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:
o COBOL PL/I Assembler C/C
o CICS IMS and system administration on DB2/CICS/IMS
o REXX scripting for automation and migration tasks
Strong troubleshooting skills for IBM mainframe product-related issues.