Manoj K.
IBM i (AS/400) Consultant | Expert in COBOL/400, RPGLE (ILE/Free), CLLE, DB2/400 | Legacy System Modernization & Integration & Insurance Domain Solutions
- Role
- Ibm i (as 400) Consultant & Senior Developer at American Express
- Location
- Tampa, FL, US
- LinkedIn followers
- 500 followers
About Manoj K.
I’m an IBM i (AS/400) Consultant and Senior Developer with 10+ years of experience…
Experience
Ibm i (as 400) Consultant & Senior Developer
May 2024 — Present
Design and develop robust financial and transaction processing systems using RPG IV/ILE/Free, CLLE, and DB2/400 tailored to American Express\'s enterprise requirements.• Migrate monolithic legacy applications into modular, service-based architecture by utilizing service programs, binding directories, and API integration techniques.• Integrate IBM i systems with external platforms via secure file transfers (SFTP/FTP), MQ Series, and REST/SOAP web services to support real-time transaction flows.• Develop and maintain complex subfile-based UI applications for internal users, improving usability and workflow efficiency.• Tune SQL queries and restructure physical/logical files to optimize data retrieval time, significantly improving report generation performance.• Create reusable utility programs for logging, error handling, file validation, and cross-platform messaging to promote consistency across projects.• Use debugging tools such as STRDBG, service job tracing, and job logs to diagnose and fix high-priority production issues in real time.• Coordinate release management processes using tools like TurnOver, Aldon CMS, and in-house deployment scripts to ensure safe promotion of code to production.• Collaborate with infrastructure teams on IBM i PTF upgrades, IPL planning, and hardware migrations with zero business disruption.• Implement role-based security model on IBM i, improving access control and simplifying audit preparation for internal and external audits.• Work on conversion projects to re-engineer legacy code written in RPG and RPG/400 to modern RPG IV / Free Format code for maintainability.• Analyze and refactor batch jobs and long-running processes to enable parallel processing and reduce end-of-day processing time.• Contribute to mainframe-to-AS/400 integration efforts, ensuring consistent data synchronization and transaction alignment across platforms.
Education
University of South Florida
Master of Science - MS, Business Analytics and Information Systems
Jawaharlal Nehru Technological University
Bachelor of Technology - BTech, Electronics and Communications Engineering
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