Surendran Prabalakumar

Senior Software Engineer and Mainframe Specialist with 15+ years of experience developing, enhancing, debugging and supporting business-critical enterprise applications using COBOL and IBM mainframe technologies. Deep expertise in cards and payments, including credit-card transaction posting, account maintenance, financial calculations, batch processing and production support. Experienced across the full SDLC, with particular strengths in requirements analysis, solution design, impact analysis, legacy-code investigation, testing, production troubleshooting and translating complex business rules into reliable, maintainable software.

Senior Developer / Application Analyst - First Data / Fiserv

(2014-01)

Long-term engineering role on SSUPDATE, a large COBOL-based transaction-posting and credit-card account-maintenance engine supporting complex financial processing.

• Analyse complex business and functional requirements and translate them into technical designs and maintainable mainframe solutions.
• Perform detailed impact analysis across COBOL programs, batch flows, data structures and downstream dependencies before implementing changes.
• Design, develop, enhance and maintain applications using COBOL, JCL, DB2 and VSAM across business-critical credit-card processing functions.
• Investigate production incidents and abends, trace application and batch processing, identify root causes and deliver corrective fixes.
• Prepare design specifications, process-flow diagrams, unit-test documentation and end-to-end test scenarios for application changes.
• Support production implementations, post-implementation warranty periods and long-running on-call support for critical processing cycles.
• Analyse existing processes for performance and operational improvements, and develop REXX automation to reduce repetitive daily effort.
• Coordinate with business analysts, project managers, testing teams and geographically distributed delivery teams; provide knowledge transfer and technical guidance.

Developer - AMEX Globestar - Cognizant Technology Solutions

(2011-06 - 2013-12)

• Developed, enhanced and maintained mainframe applications supporting AMEX credit-card processing and account maintenance across multiple markets.
• Provided UAT and system batch support, monitored critical processing and delivered fixes for application and batch issues.
• Prepared system-understanding documentation and delivered knowledge-transfer sessions on VisionPLUS subsystems and service architecture.
• Produced one-off data extracts and validation outputs to support client analysis and testing.

Developer - First Data VisionPLUS - Cognizant Technology Solutions

(2011-01 - 2011-06)

• Developed and maintained credit-card processing functionality on the VisionPLUS platform using mainframe technologies.
• Supported application enhancements, testing and validation for card-processing and account-maintenance functions.

Bachelor of Engineering - Mechatronics Engineering - Kongu Engineering College, Perundurai, Tamil Nadu, India