Gazanfar Gaffar
MAINFRAME DEVELOPER
Jaipur
Summary
Results-driven Mainframe Developer with 4 years of experience at TCS, specializing in COBOL, JCL, DB2, CICS, and VSAM on IBM z/OS. Proven track record in Core Banking Systems (CIBIL, NPA, Loan Processing, ATM, DMR), with achievements including 20% faster batch processing, 40% reduction in manual reporting effort, and 100% SLA compliance for high-severity issue resolution. Adept at delivering scalable, defect-free solutions and driving business growth through process automation and technical expertise.”
Overview
4
4
years of professional experience
Work History
System Engineer (Mainframe Developer)
Tata Consultancy Services
12.2021 - Current
- Designed and delivered COBOL-JCL batch and CICS online applications for Core Banking modules (CIBIL, NPA, DMR, Loan Processing) with zero post-production defects.
- Built compliance-driven solutions for PMSY/PMJY amendments, PACS integration, and reporting, ensuring regulatory adherence and business adaptability.
- Optimized DB2 queries and restructured VSAM files, improving transaction throughput and reducing batch runtime by 20%.
- Automated reporting workflows through JCL based batch job automation, cutting manual effort by 40% and boosting efficiency by 30%.
- Developed reusable, stable components that strengthened system reliability and minimized recurring failures across banking applications.
- Drove Agile delivery cycles in collaboration with QA and Business Analysts, shortening release timelines by 15% and reducing defect leakage.
- Delivered multiple enhancements and modules in parallel, consistently meeting deadlines and maintaining high-quality, defect-free outcomes.
- Applied strong problem-solving and root cause analysis during development and testing phases, ensuring system stability and minimizing production issues.
Education
M.Tech - Electronics & Communication
Chandigarh University
Chandigarh, India01.2023
B.Tech - Electronics & Communication
SNDT Women's University
Mumbai, India01.2021
Higher Secondary - Science
Govt GHSS
Srinagar, India 04.2001 -
Skills
COBOL programming
Accomplishments
- Recognized at TCS for automation initiatives that reduced manual reporting effort by 40% and boosted delivery efficiency by 30%.
- Delivered zero-defect Core Banking modules (CIBIL, NPA, Loan Processing, DMR) in production, ensuring smooth compliance and financial operations.
- Achieved 20% reduction in batch runtime through COBOL-JCL performance tuning, enabling faster end-of-day processing for critical banking transactions.
- Resolved and optimized 50+ high-severity incidents annually with 100% SLA compliance, strengthening system reliability.
- Consistently appreciated for cross-team collaboration and driving Agile delivery cycles, reducing release timelines by 15%.
- Honored by shri PM for academic excellence (PMSSS) in 2017.
Timeline
System Engineer (Mainframe Developer)
Tata Consultancy Services
12.2021 - Current
Higher Secondary - Science
Govt GHSS
04.2001 -
M.Tech - Electronics & Communication
Chandigarh University
B.Tech - Electronics & Communication
SNDT Women's University
Similar Profiles
Vrunda ChindhadeVrunda Chindhade
HR Manager at Tata Consultancy Services, TCS, Tata Consultancy Services LimitedHR Manager at Tata Consultancy Services, TCS, Tata Consultancy Services Limited
Sreya BasuSreya Basu
Procare Analyst at Tata Steel(Tata Consultancy Services)Procare Analyst at Tata Steel(Tata Consultancy Services)
Arun VArun V
Program Manager at Tata consultancy services | Financial Ombudsman ServicesProgram Manager at Tata consultancy services | Financial Ombudsman Services
Naimish AgnihotriNaimish Agnihotri
Assistant Delivery Manager at Tata Consultancy Services, Global Shared ServicesAssistant Delivery Manager at Tata Consultancy Services, Global Shared Services
Kriti PrasadKriti Prasad
Financial Reporting Intern at DMI FinanceFinancial Reporting Intern at DMI Finance