Selected Projects & Systems.
A closer look at the backend-heavy platforms, integrations and transaction workflows I work on.
Systems I’ve worked on.
Representative engineering areas from fintech, payments, APIs and travel technology.
01 — Fintech B2B & API Platform
Multi-service fintech systems covering AEPS, Aadhaar Pay, BBPS, DMT, PayIn/payment gateway, payout, UPI cashout, account verification, merchant onboarding, wallets, commissions, settlements, reports and ledgers.
02 — AEPS & Aadhaar Pay
Merchant onboarding, biometric authentication, cash withdrawal, balance enquiry, mini statement, Aadhaar Pay, OTP flows, transaction query, commissions and provider logging.
03 — BBPS Bill Payment
Biller/category discovery, dynamic parameters, bill enquiry, validation, payment, callbacks, transaction status and settlement tracking.
04 — DMT / Money Transfer
Sender registration, OTP and biometric verification, beneficiary flows, IMPS/NEFT transfers, wallet debit, commissions and provider response handling.
05 — Payment Gateway / PayIn & Payout
Payment initiation, checkout/redirect, card/UPI flows, webhook processing, UTR/status verification, charges, settlement, reversal and reconciliation.
06 — Travel Booking Systems
Flight/hotel API flows including search, fare quote/upsell, SSR, booking, ticketing, PNR, booking details, cancellation, agent markup, wallet deductions and booking ledgers.