About the Client
A startup based in Sydney, building the bridge between cryptocurrency balances and ordinary spending.
Challenges
Crypto holders want to use their holdings the way they use cash, and at a fair rate. Both halves of that sentence are engineering problems.
- Rates have to be aggregated from several global exchanges in real time, or the user is quietly overcharged.
- The platform has to reach local bank infrastructure to move fiat at the other end.
- Merchants want crypto payments without holding crypto: the volatility has to be absorbed between the two sides.
- Everything happens with money, in public, under regulatory attention.
Our Approach
We developed a web application with two sides to it.
For individuals: spend cryptocurrency like cash: pay bills and credit cards, cash out from ATMs, transfer to any bank account, shop with crypto at online stores, buy crypto at an aggregated best price, and borrow against holdings without a credit check.
For businesses: accept Bitcoin, Ethereum and other cryptocurrencies and receive the money as fiat, with no exposure to the price moving between payment and settlement. The checkout plugin drops into an existing e-commerce platform, and fraud protection sits in the flow rather than beside it.
The exchange layer connects to global markets to find the rate, and to local banking rails to deliver the result, in both directions.
Results
- Crypto holders can convert and spend without leaving the platform or timing the market themselves.
- Merchants gained a payment method they can accept without changing how they hold money.
- Rate aggregation across exchanges became a visible advantage rather than a hidden margin.
Technology Stack
Spring framework on the server, Ethereum and other blockchain integrations, exchange rate aggregation from global markets, connections to local bank infrastructure, e-commerce checkout plugin.
Business Impact
The hard part of a crypto payments product is not the blockchain: it is everything on the fiat side: bank rails, settlement timing and who carries the volatility. Solving that is what turns a wallet into a payment method a merchant will actually enable.