Summary
Overview
Work History
Education
Skills
Projects
Websites
Languages
Timeline
Generic

SAURABH KUMAR CHOUDHARY

Bengaluru

Summary

Mainframe Developer with extensive experience at NTT DATA and Tata Consultancy Services (TCS), specializing in COBOL, JCL, DB2, VSAM, and CICS for banking and financial services. Led enhancements of credit card transaction systems at NTT DATA, achieving high reliability and compliance with SLAs. Recognized for expertise in incident management and root cause analysis, delivering effective solutions in complex environments. Contributed to critical mainframe operations at TCS, optimizing job flows and resolving production issues for major financial institutions.

Overview

5
5
years of professional experience

Work History

Mainframe Developer

NTT DATA
Bengaluru
03.2025 - Current
  • Developed, enhanced, and maintained large-scale mainframe applications using COBOL, JCL, DB2, and CICS for credit card transaction systems and processing platforms.
  • Analyzed and implemented change requests, production fixes, and performance optimizations related to card billing, payments, and customer account management.
  • Coordinated with business analysts, QA teams, and project managers to deliver card services enhancements and issue resolutions within agile timelines.
  • Monitored and resolved batch job failures using Control-M/TWS to ensure timely statement generation, payment application, and transaction settlement.
  • Prepared technical design documents, unit test plans, and deployment guides in compliance with SDLC and credit card regulatory standards.
  • Provided operational support for credit card systems, overseeing batch processing, queue management, and resolving customer-impacting failures.
  • Proficient in COBOL-based batch development for credit card billing cycles, limit checks, transaction histories, and DB2 table updates.

Mainframe Developer

Tata Consultancy Services (TCS)
Bengaluru
09.2020 - 02.2025
  • Executed end-to-end processes for 1099 and 1042S forms, ensuring accurate analysis and timely delivery.
  • Developed and maintained batch and online programs using COBOL, JCL, DB2, SQL, VSAM, and CICS.
  • Monitored batch processes via TWS, achieving SLA compliance while addressing high-priority issues.
  • Participated in all SDLC phases, including technical design, code reviews, and defect triage.
  • Conducted SEV2/SEV3 incident resolutions and RCA sessions to enhance system reliability.
  • Maintained comprehensive project documentation and ensured compliance through audits and checkpoints.
  • Collaborated with business analysts and QA teams to gather requirements for quality deliverables.
  • Established expertise in incident management and mainframe systems support, surpassing client expectations.

Education

B.Tech/B.E. - Computer Science and Engineering

Maulana Abul Kalam Azad University of Technology
West Bengal
08-2020

Skills

  • JCL
  • COBOL
  • DB2
  • CICS
  • VSAM
  • IBM Utilities
  • File Manager
  • Eclipse
  • File-Aid
  • Change-Man
  • Service Now
  • JIRA

Projects

Tax Shareworks, 6 Weeks, Primarily involved in managing US tax forms such as the 1099 and 1042S forms, as well as handling corporate actions and dividend distribution processes. Developed a strong proficiency in overseeing the end-to-end generation process for these forms, ensuring accuracy and compliance with regulatory requirements. US Retail Banking, 487 Days, Involved in supporting nearly 15 applications catering to diverse banking activities utilizing mainframe technology. Closely monitored mainframe production batches to ensure adherence to predefined service level agreements (SLAs). US RETAIL, 212 Days, Handled mainframe operations and support, including troubleshooting applications, job monitoring, batch monitoring, and prioritization of jobs and queues. Expert in resolving batch issues within SLAs.

Languages

English
First Language
Hindi
Beginner
A1
Maithili
Beginner
A1

Timeline

Mainframe Developer

NTT DATA
03.2025 - Current

Mainframe Developer

Tata Consultancy Services (TCS)
09.2020 - 02.2025

B.Tech/B.E. - Computer Science and Engineering

Maulana Abul Kalam Azad University of Technology
SAURABH KUMAR CHOUDHARY