Senior mobile developer, six years in fintech. I build secure, multi-tenant banking apps — one platform, 31+ banking institutions, iOS and React Native with the native layer underneath.
Fintech banking features across React Native, Swift and Kotlin/Java. Designed and built a SwiftUI Apple Watch companion app with its own autonomous API layer, and I build the platform-specific native components the React Native banking apps depend on. I also guide junior developers and weigh in on architecture, implementation planning and code quality.
Built features for the multi-tenant mobile banking platform deployed across 31+ banking institutions — native iOS in Swift and UIKit across legacy and modern codebases, plus the retail apps' technical evolution: React Native adoption, UX/UI work and accessibility adaptations. Implemented the security-sensitive flows — biometric authentication, secure networking, HMAC-based communication, push notifications and deep linking — contributed to a banking app's migration from NativeScript to Flutter, and supported multi-bank rollouts end to end: bank-specific assets, build parameters, Firebase configuration, versioning and release, with Fastlane and Node.js automation behind it.
A web tool that transcribes audio and summarises it with AI. Record or upload, trim on an interactive waveform, then get a Whisper transcription and a summary you can refine by chat. Summarisation is provider-agnostic — Claude, GPT-4 or Deepseek behind a Strategy-pattern abstraction — and API keys live in session storage only, cleared when the tab closes.
A full iOS app for managing personal finances — balance and transaction dashboard, searchable activity feed, and insights with spending forecasts, category trends and a financial health score. Customisable categories, CSV/Excel import with column mapping, Face ID and PIN lock, pay-cycle configuration, and an iPad sidebar layout in both light and dark mode.
I speak at local developer meetups — Come to Code — including a talk on using AI coding assistants to build side projects without giving up personal time. Away from the screen I shoot black-and-white photography, posted as @rizzo_pic.