Mainframe Developer

Roles & Responsibilities

• Design, develop, and maintain mainframe applications to support critical business operations
• Enhance existing applications and perform maintenance and defect fixes across environments
• Develop and maintain JCL scripts for batch processing and ensure timely execution
• Monitor, troubleshoot, and support batch and online job processing
• Conduct impact analysis for code changes and system enhancements
• Participate in testing cycles, ensuring all deliverables meet functional and technical requirements
• Debug and resolve issues across development, testing, and production environments
• Maintain and update technical documentation, including program logic and job workflows
• Collaborate with business analysts, QA teams, and stakeholders to translate requirements into solutions
• Support production releases, including deployment and post-release stabilization
• Follow change management, release management, and incident management processes
• Ensure adherence to coding standards, quality benchmarks, and compliance requirements
• Participate in code reviews and contribute to continuous improvement
• Provide knowledge transfer and mentoring to junior team members
• Support modernization or migration initiatives as needed

• Strong hands‑on experience with COBOL, JCL, and mainframe utilities
• Proven ability to design, develop, enhance, and support mainframe applications
• Experience with batch processing, scheduling, and job control
• Solid understanding of online and batch program development and support
• Ability to analyze existing systems and perform impact analysis for enhancements and fixes
• Experience in debugging and resolving production and non-production issues
• Knowledge of restart/recovery processes and job failure handling
  
  Familiarity with testing methodologies (unit, system, and UAT support)
• Understanding of performance, reliability, and security standards in enterprise systems
• Experience working in Agile or hybrid Agile‑Waterfall environments