Lead UX Designer · London

Antonio Trotta

Fourteen years designing clarity into complex product systems: trading platforms, financial tools, and data-heavy enterprise software.

Antonio Trotta, Lead UX Designer
  • Account and Payment Improvements

    Payment queries accounted for 17% of all contacts to IG’s Trading Services team, a figure that had built up for years without being owned as a design problem. I treated discovery as a project in its own right, building the evidence base needed to win C-level investment before any design began. The systematic redesign that…

    Read case study →: Account and Payment Improvements
  • Nadex New Web Platform

    Six months after the Nadex mobile PWA launched, the company retired its 11-year-old desktop trading platform. Designing the replacement was not a matter of translating the mobile experience to a larger screen, but of asking what would genuinely be better on desktop. The work held to one constraint throughout: extending the PWA without fragmenting the…

    Read case study →: Nadex New Web Platform
  • Nadex Mobile PWA

    When Apple and Google removed binary options apps from their stores, Nadex lost its mobile distribution overnight, with half of all trading happening on mobile. A Progressive Web App restored access through the browser, but the harder problems sat in the verification flows. A research-led fix to the identity step, where 8% of rejections came…

    Read case study →: Nadex Mobile PWA

Where I focus

My work spans design leadership, systems thinking, and AI-augmented product design. Over fourteen years I have led UX at every scale, from zero-to-one product bets to enterprise programmes spanning hundreds of engineers. The approach stays the same throughout. Clarity of intent, rigour of process, and care for the people building the thing are inseparable.

UX Leadership

Building design organisations that influence decisions early, through craft standards, clear operating models, and a culture that favours considered decisions over reactive output.

Product Design

End-to-end design responsibility on complex, data-rich products: B2B platforms, content tools, and enterprise applications where precision of language and interaction are the product.

AI Practice

Defining the UX principles and ethical frameworks for AI-assisted experiences: where to surface machine confidence, where to defer to human judgement, and how to keep users genuinely in control.