"I carried end-to-end responsibility for defining the UX approach across three systems, making critical decisions that impacted the experience of over 70 million global users."
Introduction
I was responsible for leading UX research and designing a new system that seamlessly integrated three powerful platforms. My focus was on usability, user experience (UX), and user interface (UI), all built upon a robust, scalable design system.
The project was developed for AMEX GBT (American Express Global Business Travel), where I worked closely with McKinsey, AMEX’s key strategic client. Remarkably, within just six months, the platform reached nearly 70 million business and professional users globally — a milestone that reflected both the scale and the impact of the solution we delivered.
Industry
Corporate, B2B Services
Technology
Web, RIA, RWD, SaaS
Teams
Cross-functional
Projet
Agile, Scrum
Approach
As UX lead, I was responsible for defining the strategic experience layer of the new platform and ensuring design alignment across all three integrated systems. I initiated and conducted targeted UX research, including stakeholder interviews, flow mapping, and functionality analysis.
Crucially, I collaborated directly with McKinsey’s consulting teams, turning strategic input and high-level business requirements into tangible product behaviors, UI patterns, and scalable interactions.
I also led the functional mapping and adaptation process — identifying equivalent and divergent behaviors across platforms, and translating them into coherent, reusable components within a single design system. My work laid the foundation for a consistent user experience across a highly complex enterprise environment.
Challenge
American Express Global Business Travel (AMEX GBT) aimed to consolidate and modernize three large-scale, independent platforms into one unified, seamless experience — with the goal of delivering world-class usability at global scale.
The project required deep strategic alignment with AMEX’s core business objectives and with their key partner, McKinsey & Company, the world’s leading consulting firm. One of the biggest challenges was mapping overlapping features and flows across systems with different logics and legacy constraints, while ensuring a consistent UX foundation.
Services
- Strategic UX research and experience design
- Stakeholder alignment with McKinsey & AMEX product teams
- Functional mapping across 3 legacy platforms
- Design and system-level integration of UI/UX patterns
- Scalable Design System development
- Usability optimization for business-class users
- Cross-functional collaboration (product, tech, consulting, executive)