MAINFRAME ENGINEER

Roles and Responsibilities

• Support, maintain, and enhance business-critical applications running on IBM z/OS.
• Analyze business requirements and translate them into detailed technical design documents.
• Design, develop, test, and maintain applications using COBOL, JCL, DB2, IMS DB/DC, and VSAM/File processing.
• Implement application enhancements, bug fixes, and performance improvements.
• Perform coding, unit testing, debugging, and support system integration activities.
• Provide production support by investigating and resolving incidents within SLA timelines.
• Perform root cause analysis and implement preventive solutions for recurring issues.
• Collaborate with Business Analysts, QA teams, architects, and other stakeholders to deliver high-quality solutions.
• Communicate project status, technical risks, dependencies, and solution options effectively.
• Ensure adherence to coding standards, development best practices, and quality processes.
• Prepare and maintain technical documentation, design documents, and knowledge articles.
• Identify opportunities for process improvements, automation, and application optimization.
• Participate in code reviews, knowledge-sharing sessions, and continuous improvement initiatives.

Required Experience

• 4–8 years of experience in Mainframe application development and support.
• Hands-on experience supporting and enhancing applications on IBM z/OS.
• Strong development experience using COBOL, JCL, DB2, IMS DB/DC, and VSAM/File processing.
• Experience in application change requests, performance tuning, and data analysis.
• Proven experience in production support, incident troubleshooting, and defect resolution.
• Able to work with cross-functional teams, including Business Analysts, QA, and stakeholders.
• Experience documenting technical designs, solutions, and operational procedures.