Aiswarya Suresh

Senior Mainframe Developer @Tata Consultancy Services

Irving, TX, US

Analyze business processes, data flows, and system behavior.Work closely with business analysts or end-users to translate business requirements into technical specifications and convert it into functional code.Understand how different modules interact within the legacy environment.Write, enhance, or debug COBOL programs used in batch or online processing. Maintained batch applications using COBOL and DL/I to access IMS hierarchical databases.Created and modified DL/I calls to perform data manipulation (GU, GN, GHU, GHN, ISRT, DLET). Used the DL/I calls effectively for accessing hierarchical data.Designed PSBs and DBDs and coordinated with DBAs for changes and deployment.Built and maintained interfaces with third-party vendors using flat files and FTP.Conducted code reviews and implemented performance improvements on legacy modules.Acted as the SME for CICS transactions, supporting daily real-time requests.Conducted peer code reviews, performance tuning, and system impact analysis.Designed JCL job streams and managed file transfers across internal and external systems.Used SORT Utilities (DFSORT, SYNCSORT) in the JCL to perform various optimizations.Used DBAs to run data extract, load, or unload jobs using utilities like IEBGENER, IDCAMS, etc.Monitors IMS job execution via JCL.Analyzes and resolves application abends, data access errors, or transaction failures.

Sri Sai Ram Institute of Technology (Sairam Group of Institutions)

Bachelor's degree