← Back to portfolioCase Study · David Silverlight
💳 Xamarin.Forms · Banking-as-a-Service

T-Mobile Money

A customer-facing mobile bank built for a national carrier — full-service checking, transfers, perks, and cash access wrapped in a fast, secure Xamarin experience spanning 300+ screens on iOS and Android.

Mobile BankingFintechMoney MovementGoogle MapsXamarin.Forms
T-Mobile MONEY
4••• •••• •••• 2019
Available balance
$4,271.08
▲ 4.00% APY
300+
Screens across the app
iOS + Android
Single shared codebase
BaaS
Banking-as-a-Service platform
2017–19
Build & launch engagement
What it does

A full bank, in your pocket

T-Mobile Money delivers a complete suite of everyday banking services — designed to move money, reward customers, and keep cash within reach.

💸

Move Money

Account transfers and fund management that let customers move money quickly and confidently.

🎁

Perks & Alerts

Rewards, perks, and CUI notifications that keep customers engaged and informed in real time.

📍

Find Cash

ATM and cash-deposit locators powered by Google Maps to surface the nearest access points.

🔐

Card Controls

Card activation and account customization that put security and control in the customer's hands.

My role

Building trusted money features on a distributed team

As a Xamarin.Forms developer on a distributed delivery team, I built customer-facing money features on a robust architecture — with an emphasis on reliability, UX, and clean patterns.

1

Money movement

Developed account transfers and fund-management flows at the core of the banking experience.

2

Perks & notifications

Delivered perks and CUI notification features that drove engagement and clarity.

3

Cash access

Built ATM / cash-deposit locators on the Google Maps SDK to help customers find cash fast.

4

Card & account

Integrated card activation and account customization while upholding UI/UX best practices.

🏦 300+ screens, delivered on a robust Xamarin architecture with MVVMCross.
The app

A look at T-Mobile Money

A polished, customer-facing banking experience across iOS and Android. Click any screen to enlarge.

Architecture & stack

Engineered for trust and scale

A customer-facing banking platform built on a robust Xamarin architecture — the kind of foundation that keeps a 300-screen fintech app maintainable, testable, and reliable.

Xamarin.FormsMVVMCrossGoogle Maps SDKREST APIsXamarin.EssentialsiOS & AndroidBanking-as-a-Service
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