Revanth Kumar

Enhanced COBOL/DB2 applications for ACH, payments, and retail banking, improving throughput and reducing transaction latency.  Redesigned and optimized ACH transaction processing flows in COBOL/DB2, improving settlement accuracy and reducing processing time by 20%.  Supported PEP+ payment file processing, including validation, transformation, and FTP transfers of EPN/NACHA files for high-volume corporate transactions.  Led enterprise-wide ACF2 to RACF migration, converting 50K+ user IDs and 800+ applications with zero downtime.  Paticipated in modernization by re-architecting COBOL applications into scalable Java microservices, enabling seamless integration with cloud platforms.  Optimized DB2 queries and restructured access paths, cutting CPU utilization by 30% and reducing annual operating costs.  Delivered COBOL V5 upgrade, ensuring seamless compatibility across mission-critical applications.  Managed source code, versioning, and deployments using Changeman, ensuring controlled and error-free production releases.  Directed end-to-end migration of legacy workloads to AWS, implementing cloud-native batch scheduling, CI/CD, and cost optimization strategies.  Guided enterprise DB2-to-Postgres conversion, optimizing schemas, queries, and integrations to support high- performance cloud applications.  Automated JCL batch restart and recovery processes, reducing manual interventions by 40%.  Implemented Tivoli and OMEGAMON dashboards for real-time monitoring and proactive system alerts.  Collaborated with architects on hybrid cloud integration strategies, enabling smoother workload distribution.  Designed DB2/VSAM data archival and retrieval solutions, improving compliance and reporting efficiency.  Integrated COBOL programs with distributed systems via MQ and REST APIs, advancing modernization goals.  Provided 24x7 production support for high-volume systems, maintaining availability for 100M+ daily transactions.

Developed and enhanced COBOL/IMS & DB2 applications for student billing and telecom services, ensuring accuracy and reliability.  Directed automation strategy with REXX and CLIST scripts, reducing regression cycle times by 35% and improving release quality.  Designed IMS/DC modernization integrations with APIs, improving interoperability with external systems.  Conducted z/OS migration testing, validating functionality and ensuring a seamless defect-free cutover.  Built JCL utilities and standardized batch frameworks, streamlining execution and reducing operational risks.  Managed QA governance across multiple teams, including test planning, defect triage, and reporting.  Validated and performance-tuned DB2 stored procedures and queries supporting 10M+ monthly records.  Partnered with security teams on ACF2 access reviews, improving compliance and audit readiness.  Authored SOPs, knowledge base documentation, and training guides, reducing onboarding time by 50%.  Performed stress and performance testing of IMS/DC transactions, ensuring system scalability.  Collaborated closely with business analysts and stakeholders, ensuring requirements traceability.  Mentored junior developers and QA engineers in mainframe tools, coding standards, and modernization practices.

Developed and maintained COBOL/DB2/IMS applications supporting enterprise-wide operations and business processes.  Migrated legacy batch jobs into optimized COBOL/JCL solutions, improving performance and maintainability.  Designed and executed unit, system, and integration testing, ensuring minimal postproduction defects.  Built SAS/Easytrieve reporting solutions, reducing report turnaround time by 40% and improving decision-making.  Developed and enhanced COBOL/DB2 programs for insurance claims processing, ensuring compliance and accurate data handling.  Participated in ACF2 to RACF migration, creating RACF compliant access rules and validation programs.  Installed, configured, and supported CICS regions, DB2 subsystems, and IMS DC for high availability.  Developed validation programs in COBOL/DB2 to reconcile RACF rules with ACF2 baselines.  Provided production support using File-Aid, Xpeditor, and Abend-Aid, achieving 97% SLA compliance.  Scheduled and monitored migration jobs using Z Workload Scheduler and Jobtrac, ensuring timely execution.  Assisted in cutover testing, issue resolution, and supported RACF adoption across critical applications.  Developed and enhanced batch job frameworks, automating monitoring and restart processes.  Authored documentation and conducted knowledge transfer sessions, enabling smooth transitions for new team members.