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Engineering

How we built instant transfers across 30 currencies

A deep dive into the architecture behind Volet's real-time payment rails.

Jul 18, 2026Engineering

Sending money internationally has traditionally meant waiting, paying unpredictable fees and wondering when the money will arrive. We wanted the experience to feel much simpler.

One experience across currencies

Volet is designed to give customers one place to hold, send and receive money across different currencies. Instead of making every currency feel like a separate banking product, the goal is to make moving between them feel like one connected experience.

Making transfers feel immediate

Behind a simple transfer are several steps: checking the payment details, validating the transaction, calculating the exchange where required and routing the payment through the appropriate payment infrastructure.

Our approach is to handle as much of that complexity in the background as possible, while giving customers clear information about the amount, currency, fees and status of their transfer.

Built with security in mind

Speed should never mean ignoring security. Transfers can require authentication and automated checks before they are processed. These controls are designed to help protect accounts while keeping legitimate payments straightforward.

A simpler way to move money

The technology behind international payments can be complicated. The customer experience should not be. Our aim is simple: make it easier to understand where your money is going, what it costs and what happens next.