CryptoWala Exchange

Web3

Compliant P2P crypto-fiat exchange for USDT to INR conversion in India

Software Architect & Lead Engineer · 2023 — Present

The Problem

Indian users needed a compliant way to convert between crypto (USDT) and INR with proper KYC, custody, and travel rule compliance — all in a seamless mobile and web experience.

Overview

An on-ramp/off-ramp P2P exchange enabling seamless USDT (TRC20) to INR conversion with custodial wallets, tiered KYC, and full regulatory compliance.

Architecture

Multi-service architecture with dedicated custody, compliance, and payment rail integrations. Audit-grade logging and tiered identity verification for regulatory compliance.

Key Highlights

•Built mobile apps in Flutter (Android & iOS) and Admin Panel in React (Next.js)
•Backend powered by Node.js/Express with MySQL across multi-environment setups
•Integrated BitGo (custody), Signzy (KYC), TRM Labs (KYT), Shyft Network (Travel Rule), SprintNXT (UPI/IMPS)
•Implemented audit-grade transaction logs, tiered KYC, MFA, and automated wallet/bank whitelisting

Tech Stack

FlutterReactNext.jsNode.jsExpressMySQLBitGoSignzyTRM LabsShyft Network