Unit
Developing multiple native mobile SDKs for banking-as-a-service, including digital wallet provisioning for Apple Wallet and Google Pay.
About
Unit is the banking-as-a-service platform that lets companies embed financial features directly into their products. Its white-label UIs provide pre-built, customizable components that let Unit's clients build in minutes and launch in weeks.
SDK Engineering
We are the mobile team behind Unit's client-facing SDKs, working in lockstep with Unit's internal web team. From day one, iOS (Swift), Android (Kotlin), and React Native have been developed in parallel, with full ownership of architecture, development, and ongoing evolution. The SDKs ship inside the production apps of Unit's clients.
Project highlights
Three platforms, one surface
iOS, Android, and React Native built side by side so every feature lands across the full SDK surface at the same time.
- Swift on iOS, Kotlin on Android, React Native for cross-platform
- Shared API shape across all three platforms
Digital wallet provisioning
Push-provisioning flows that issue cards directly into Apple Wallet, Google Pay, and Samsung Pay via Visa push provisioning.
- Apple Wallet, Google Pay, and Samsung Pay
- Visa push provisioning end-to-end
- Platform-specific cryptography, entitlements, and certification
Release pipeline in CI
A full CI release pipeline that publishes tagged, verified builds to the package managers Unit's clients integrate with.
- CocoaPods and Swift Package Manager for iOS
- Maven for Android
- NPM for React Native
- Internal sample apps distributed for QA and marketing
Integration-first documentation
Every SDK ships with an implementation guide written for the developers integrating it, so client teams reach a working integration without friction.
- Step-by-step implementation guide per SDK
- Sample code and clear error surfaces
- Kept in sync with each release
Platform Growth & Support
Beyond core development, we drive the platform's adoption by authoring comprehensive implementation guides and providing high-level technical support during complex integrations. Operating as a natural extension of Unit’s platform team, we ensure seamless SDK integration while continuously expanding capabilities across all three platforms to support new features as the ecosystem scales.
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