Engineered the mission-critical backend for the Mobile Wallet Token crypto ATM network, allowing users to buy and sell major cryptocurrencies and stablecoins using various fiat currencies. The solution is built on a scalable, high-performance Node.js/Express.js architecture, covering secure blockchain-side logic, API integration with multiple crypto exchanges, and fiat-to-crypto conversion handling.
Image 1 of 13. Laptop mockup of a navy "Select Operator" kiosk screen; banner text reads ATM APPLICATION and CRYPTO ATM
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