Jul 2021 – Present · 4 yrs 10 mos · Bengaluru, Karnataka, India · On-site

• Played a key role on the EDC team, focusing on building and managing the POS system for Card and DQR (Dynamic QR) transactions. I designed and implemented the entire transactional infrastructure from scratch, including reconciliation, chargeback, and refund flows.
• Beyond core transactions, I also developed the onboarding and cancellation flows for our POS devices, which streamlined the deployment process for merchants.
• To improve system performance, I led a major project to migrate our transactional data from 2 to 16 shards, which optimized slow database queries.
• Currently, my work is centered on integrating with Hyderabad Metro to enable NCMC (National Common Mobility Card) transactions on our devices. This involves designing and developing new flows for everything from card top-ups and balance updates to offline sales and other non-financial services. I'm also responsible for coordinating with all key stakeholders—the metro, our bank, and internal PhonePe teams—to ensure a successful go-live.
• Also worked on the Money Management team, handling merchant settlements, bookkeeping, and reconciliation for both online and offline transactions. I developed a fee reversal flow to accurately reverse merchant commissions, even with frequent data truncation issues.
• Additionally, I built a real-time GST invoice generation system that is currently used for Soundbox, EDC, and ODS billing.