Sakthivel Navaneethan

Mainframe Developer with 4.5+ years of experience in the Banking and Financial Services (BFS) domain, specializing in COBOL, JCL, DB2, VSAM, and IMS DB. Experienced in legacy application modernization, mainframe migration, application enhancements, production support, and release management. Skilled in impact analysis, code remediation, testing, defect resolution, and technical documentation, with hands-on experience across the Software Development Life Cycle (SDLC).

Strong collaborator with excellent analytical, communication, and problem-solving skills, delivering reliable and high-quality solutions in Agile and enterprise environments.

Senior System Engineer - Infosys

(2025-07)

Involved in the migration and modernization of legacy mainframe applications.

• Analyzed COBOL programs, JCLs, VSAM files, and IMS DB components to understand existing business processes and system functionality
• Performed impact analysis to identify application, batch job, and scheduling dependencies during migration activities
• Identified and decommissioned obsolete batch jobs as part of the migration initiative
• Implemented COBOL and JCL code changes and coordinated required scheduling updates
• Executed validation, testing, and defect resolution activities to ensure successful migration and system stability
• Prepared functional and technical documentation for migrated and decommissioned components
• Collaborated with business, development, testing, and scheduling teams to ensure smooth migration execution and successful project delivery
• Provided production support and participated in unit and system testing throughout the migration lifecycle

Programmer Analyst - Cognizant Technology Solutions

(2021-10 - 2025-07)

Client- First Data (Fiserv). Involved In - Funding

• Enhanced existing funding applications by implementing new business requirements and system improvements
• Developed and modified COBOL programs, JCLs, and database components to support funding and settlement processes
• Performed impact analysis and code remediation for application enhancements and defect fixes
• Analyzed business requirements and prepared functional and technical design documentation
• Supported funding transaction processing, data validation, and reconciliation activities
• Resolved production incidents, job abends, and application defects to ensure business continuity
• Created RFC for deployment and release management activities
• Conducted unit testing, system testing, regression testing, and supported UAT validation
• Collaborated with business users, onsite/offshore teams, and testing teams to deliver project requirements
• Participated in application maintenance, production support, and release implementation activities
• Monitored batch processing jobs and ensured timely execution of funding-related transactions
• Prepared status reports, audit documentation, and project deliverables in compliance with organizational standards

BCA - Computer Application - NGM College, Pollachi (2018 - 2021)

Higher Secondary Education - Government Higher Secondary School, Gudimangalam (2017 - 2018)