Jun 2022 – Aug 2024 · 2 yrs 2 mos · Bengaluru, Karnataka, India

• 1. Automatic Cardbin Updates
• Impact: Increased Success Rate of card transactions, by dropping misses of bins not present in system.
• Saved manual efforts of product managers in preparing bin data and inserting in DB from 2 days TAT to immediately.
• 2. Optimization in Cardbin search
• 1. Optimised DB Query to search card bin details from 600ms to 20ms (i.e. latency improvement by 3000%), also it reduced latency in create card transaction by ~500ms
• 3. Dynamic Routing (Dashboard + analysis + development + UI + Prometheus + SQL Exporter)
• 1. Implemented DR which helped in improving SR and profits , by select optimal route at run time for better SuccessRate and Profits.
• 4. Retry Transactions if failed before OTP
• 1. Started retring the txn with alternate route if availabe , if it fails with 1st terminal.
• 5. Diners Card Tokenization Integration
• 1. Started Saving diners cards and processing Saved card payments
• 6. New Integrations with the banks
• 7. SBI Card PG Integration
• 8. 3ds 2.0 HDFC FSS
• 9. Amex SK2.0 Integration
• 1. Revamped Card PG integration and moved to 3ds2 flow for business continuity.
• 10. Hdfcfss in preauth.
• 11. Stablized Tokenization by moving from hibernate reactive to ORM.
• 12. Man in the middle attack fix (kotak and imsl(Fiserv) PG)
• 1. Identified Issues in the existing PG Integrations and fixed them which are vulnerable for man in the middle attack and user and simulate failed txn as success in our system.
• 13. AltId (Core Flows Design HLD LLD), Card Transaction continuity, Integration upgrade for all the Gateways, Integration with all the networks.
• 14. Automated Non INR Transaction Settlement.
• 15. Scaling and optimizations for the card services for the World cup and IPL Matches.
• 16. Rupay AltId , Entire new Flow.
• 17. Direct integration with NPCI for Rupay Txns
• 18. Mentoring interns
• 19. Improved latencies of token search API.
• 20. implemented tokenization
• 21. Native OTP

Jan 2022 – May 2022 · 4 mos · Bengaluru, Karnataka, India

May 2021 – Jul 2021 · 2 mos

• Build the dynamic EDUCATIONAL CONTENT MANAGEMENT SYSTEM with all the dynamic content set from admin panel.
• Colour theme , Navbar, Cards, footer, caurousels and many more components can be set dynamically from backend.
• Every section and component in the template mapped with backend so that its visiblily can be toggled from admin panel.
• Exposure: NodeJs, RESTful APIs, ExpressJs, MYSQL, ReactJs,npm.
• Impact: Received 50+ Prebookings after the demo of the project and substantial increase in revenue.