Summary
Overview
Work History
Education
Skills
Projects
Awards
Languages
Timeline
Generic

CHANDAN KUMAR YADAV

Bhopal

Summary

Data Engineer with 3.5+ years of experience in fintech and payments domain, specializing in SQL, PL/SQL, Python (Pandas), and data processing. Strong experience working with large-scale transaction and authorization data across Mastercard, Visa, Amex, RuPay, and Discover networks. Hands-on experience in ETL processes, data validation, reconciliation, and production data fixes. Proven ability to support high-volume systems, optimize queries, and deliver reliable data solutions for analytics and reporting.

Overview

4
4
years of professional experience

Work History

Data Engineer / Application Developer

CoreCard Software India Pvt. Ltd.
Bhopal
07.2024 - Current
  • Working on Discover credit transaction processing, handling large-scale authorization and transaction datasets.
  • Designed and enhanced ETL-style data flows to extract transaction data, apply business transformations, and load results into reporting and reconciliation tables.
  • Implemented ADC enhancements and client-specific logic for Mastercard, Visa, RuPay, and Amex networks.
  • Supported scheme mandates (biannual updates) ensuring compliance with network data and processing standards.
  • Optimized SQL and PL/SQL queries to improve performance and stability for high-volume transactional data.

Associate Data Engineer / Backend Developer

CoreCard Software India Pvt. Ltd.
Bhopal
07.2023 - 06.2024
  • Optimized backend data components, reducing transaction processing time by ~15% through efficient SQL tuning.
  • Supported production and UAT deployments, performing data fixes, validation, and reconciliation activities.
  • Worked with transaction datasets to analyze failures, response codes, and data mismatches.
  • Contributed to 150+ feature enhancements involving data handling and backend logic.

Trainee Data Engineer

CoreCard Software India Pvt. Ltd.
Bhopal
07.2022 - 07.2023
  • Built TCP/IP-based simulators for Mastercard, Visa, RuPay, and Amex to test real-time transaction data flows.
  • Developed validation logic for real-time credit transactions and assisted in early-stage performance tuning.
  • Gained hands-on experience with authorization data structures and message flows.

Intern – Data & Backend Systems

CoreCard Software India Pvt. Ltd.
Bhopal
02.2022 - 06.2022
  • Developed workflows using TCP/IP models to simulate transaction data exchange with payment networks.
  • Configured ADC models and assisted in authorization data processing.
  • Gained exposure to secure financial transaction systems and data-driven backend workflows.

Education

B.Tech - Computer Science

Radharaman Institute of Technology & Science
Bhopal
05.2022

Skills

  • SQL & PL/SQL
  • Data Engineering & ETL
  • Python (Pandas)
  • Data Processing & Data Pipelines
  • Transaction & Authorization Data
  • Payments / FinTech Domain
  • ISO 8583 Message Flows
  • SQL Server (SSMS)
  • CockroachDB
  • Reporting & Data Analysis
  • Production Support & Data Fixes
  • Real-time analytics
  • Data warehousing
  • Team collaboration
  • SQL optimization
  • Payment processing
  • Data analysis
  • Problem solving
  • SQL expertise

Projects

Real-Time Authorization Data Platform, Developed multi-scheme data logic for Visa, Mastercard, Amex, Discover, and RuPay. Processed and validated high-volume authorization and transaction data. 3DS 2.0 & OTP-Based Authentication, Integrated 3DS 2.0 authentication flows with OTP-based verification. Supported secure data exchange and validation for authentication workflows. Fallback & Data Enrichment Logic, Built platform-level support for STIP fallback, tokenization data handling, and decline code enrichment.

Awards

Employee of the Month, 08/01/24, Awarded for outstanding contribution in backend development and transaction processing optimization.

Languages

  • English
  • Hindi (Native)
  • English

Timeline

Data Engineer / Application Developer

CoreCard Software India Pvt. Ltd.
07.2024 - Current

Associate Data Engineer / Backend Developer

CoreCard Software India Pvt. Ltd.
07.2023 - 06.2024

Trainee Data Engineer

CoreCard Software India Pvt. Ltd.
07.2022 - 07.2023

Intern – Data & Backend Systems

CoreCard Software India Pvt. Ltd.
02.2022 - 06.2022

B.Tech - Computer Science

Radharaman Institute of Technology & Science

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