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Case Study

American Express

Redesigning a global financial experience across web and mobile

I led the responsive redesign of American Express's credit card application flow and built a scalable design system serving three distinct markets: Global, Canadian, and Kenyan. The challenge was maintaining brand consistency while adapting to local regulatory requirements, cultural expectations, and device preferences.

Role

Lead Visual Designer

Scope

Web & Mobile, 3 Markets

The Problem

American Express needed a unified design approach that could scale across markets without sacrificing local relevance. The existing card application flow had high abandonment rates, inconsistent visual treatment between web and mobile, and no shared design system each market was essentially a separate product.

Fragmented experience

Global, Canadian, and Kenyan sites looked like they belonged to different companies. Users who interacted with multiple markets had no sense of continuity.

High drop-off

The card application form was long, visually dense, and didn't adapt well to mobile. Users abandoned mid-flow, especially on smaller screens.

No design system

Each market's design team worked independently. This meant duplicate effort, inconsistent patterns, and slow delivery when new features needed to ship across all markets.

Design Process

I followed a structured design process, starting with a comprehensive audit of all three markets and ending with a unified design system and redesigned application flow.

Wireframes

Low-fi wireframes for all application flow steps, tested across breakpoints

Design Standards

Defined colour, typography, spacing, and interaction patterns for global consistency

Design Language

Created a shared component library adaptable to each market's regulatory needs

Visual Design

High-fidelity mockups for web and mobile, delivered with specs for engineering

Card Application Flow

The credit card application is where Amex acquires customers. I simplified the flow from a single overwhelming form into a progressive, step-based experience that reduced cognitive load and improved completion rates across all three markets.

What changed

  • Broke the monolithic form into logical, manageable steps
  • Added progress indication so users knew where they were
  • Implemented inline validation to catch errors in real-time
  • Optimised the mobile layout for thumb-friendly input
  • Localised content and regulatory disclaimers per market

Design principles

  • Progressive disclosure: show only what's needed at each step
  • Error prevention over error correction
  • Consistent visual language across breakpoints
  • Accessibility: WCAG 2.1 AA compliance throughout
  • Performance: lightweight components for fast load times

Clear Card Comparison

The interface presents recommended business cards side by side, making it easy to compare key attributes like rewards, payment flexibility, and premium benefits. Clear hierarchy, scannable labels, and prominent CTAs help users confidently move from recommendation to application without friction.

Design System

I built a component-based design system that served as the single source of truth for all three markets. Components were designed to be configurable adapting to local requirements without breaking the global pattern.

Three Markets, One System

Each market had unique requirements Canada needed bilingual (English/French) support, Kenya needed mobile-first optimisation for lower-bandwidth connections, and the Global site needed to accommodate the widest range of card products. The design system handled this through configurable components, not separate designs.

Global

Full product catalog with premium card showcase. Desktop-heavy traffic. Rich imagery and detailed card comparison tables.

Canada

Bilingual interface with English/French toggle. Regulatory compliance for Canadian financial disclosures. Adapted card benefits for the Canadian market.

Kenya

Mobile-first design optimised for slower connections. Simplified application flow with fewer steps. Adapted for local payment infrastructure and mobile money integration.

Final Screens

Reflection

Designing for scale requires discipline. A design system only works if it's followed. The hardest part of this project wasn't creating the components it was getting three independent market teams to adopt them. Documentation, onboarding sessions, and clear naming conventions made the difference.

Localisation is more than translation. The Canadian market didn't just need French text it needed layouts that worked when text expanded by 30%. The Kenyan market needed designs that loaded fast on 3G. Local context shapes every design decision.

What I'd do differently: I'd establish a design token system from day one. Colour, spacing, and typography values should be defined as tokens that map to each market's configuration, making it even easier to maintain consistency while allowing local adaptation.