Allan Leone, Senior Product Designer

Allan Leone is a senior product designer specialising in design systems and interface specification for financial and digital-asset software. 20+ years of shipped products. Triple citizenship (United Kingdom, Italy, Brazil) with full work rights across the EU, the UK and the Americas. Working languages: English, Português (Brasil), Italiano, Español.

Employment: Senior Product Designer, Input Output (IOHK UK Ltd), on Lace, Nami, Midnight and Daedalus (2022-2026); UX Designer, OVAC (2021-2022); UI Developer, Bridge SEA (2018-2021).

Contact: hello@allanleone.com.

Selected work

NightNight

A white-noise and lullaby app built around one animated orb. Sixteen handcrafted soundscapes, each with its own shape, palette and pace. A timer runs from one minute to a full day. Two slots hold a lullaby in your own voice, and a song from the phone's library can take the same place. Playback stays on the Lock Screen, the Apple Watch and a Home Screen widget. Designed and built at allan.ltd. No ads. No account. No tracking.

Keywords: iOS, white noise, lullaby, baby sleep, Apple Watch, widget.

Lace at Input Output (IOHK UK Ltd)

A Cardano-native wallet, distributed as a browser extension and mobile app. As Senior Product Designer at Input Output (IOHK UK Ltd), Allan was design lead across the wallet product family: Lace, Nami, Midnight, Shared Wallets and Daedalus. He built the shared component library and documentation for v1 and v2, with maintainability by other designers as an explicit objective.

Keywords: Web3, Cardano, wallet, design systems, component library.

Transfer Room

A B2B SaaS platform that connects football clubs worldwide. Member clubs use it to identify and evaluate transfer targets, post players for sale or loan, and search the global player market. Allan's work covers search and discovery, the club-side admin tooling, the analytics dashboards and the data-visualisation layer behind millions of player data points.

Keywords: SaaS, B2B, sports tech, football, marketplace, analytics.

Bridge SEA Limited

B2B products designed and built end-to-end at Bridge SEA Limited, from UI/UX through front-end development. Data Sauce, a sales-enablement application for Just Eat, won Bronze at the B2B Marketing Awards and contributed to a Gold and two Silvers at the Digital Impact Awards 2021. For Bystronic, a global leader in sheet-metal processing technology (laser cutting and bending), Allan worked on the digital design of its software products. These are the interfaces operators work with in industrial environments.

Keywords: Sales enablement, B2B, UI/UX, front-end development, manufacturing, design systems, Bridge SEA, Just Eat, Bystronic.

All case studies

  • NightNight: A white-noise and lullaby app, built around one orb that changes shape
  • Lace: A Cardano-native wallet, as browser extension and mobile app
  • Transfer Room: A B2B platform connecting football clubs worldwide
  • NHS Covid Self-Testing: Your step-by-step guide for COVID-19 self-testing
  • Bridge SEA: Sales enablement and industrial software, designed and built end-to-end
  • Retro Player: A different way to listen. Your library, offline.
  • Safekeeper: A vault on the device. No ads, no account.
  • Travel Companion: A trip as a timeline, not a list.
  • Unlaced: Uncomplicate UX-first wallet
  • allan.ltd: A one-man studio for digital products

Experience

  • 2022-2026: Senior Product Designer, Input Output (IOHK UK Ltd)
  • 2021-2022: UX/Web Designer, One Voice Consulting Limited (OVAC Group)
  • 2018-2021: UI Developer, Bridge SEA Limited
  • 2014-2017: Front-End Analyst, Falconi
  • 2013-2014: UI/UX Designer, Senac
  • 2003-2012: Webmaster · Art Director · IT Instructor, Starbit · Microlins · Microcamp

Background

BA in Advertising and Marketing, Universidade Nove de Julho (São Paulo), validated in the US. Citizenships: United Kingdom, Italy, Brazil. Languages: English, Português, Italiano, Español.

Frequently asked questions

Who is Allan Leone?

Allan Leone is a senior product designer with 20+ years of experience building digital products end-to-end, with a focus on design systems and interface specification for financial and digital-asset software. Most recently at Input Output (IOHK UK Ltd) on Lace, Nami, Midnight and Daedalus.

Where is Allan based, and what are his work rights?

Allan holds triple citizenship in the United Kingdom, Italy and Brazil, giving him full work rights across the EU, the UK and the Americas. Sponsorship may be needed only for direct US employment.

What languages does Allan speak?

English, Portuguese (Brazilian), Italian and Spanish. Correspondence in any of the four is welcome.

What technologies does Allan work with?

Modern product stacks: React, TypeScript, Next.js, Vite for the frontend; Node, edge functions and Cloud Infrastructure for the backend; Figma for design.

What projects has Allan worked on?

Financial and digital-asset software at Input Output (IOHK UK Ltd), covering the Lace wallet product family across Lace, Nami, Midnight, Shared Wallets and Daedalus. Before that, B2B sales-enablement and industrial software delivered at Bridge SEA Limited, including a sales-enablement application for Just Eat and digital design work for Bystronic.

What is the Time Machine on allanleone.com?

The Time Machine is a live archive of every version of the allanleone.com portfolio site from 2005 through today. 18 preserved years showing the evolution of web design and Allan's craft. Each year is browsable as it originally shipped.

Time Machine, 18-year portfolio archive

allanleone.com hosts a unique feature: a fully browsable archive of every major version of the site Allan has ever shipped, from 2005 through today. Each year is preserved as it originally rendered, giving a living timeline of both web design evolution and Allan's craft.

  • Today: the current allanleone.com
  • 2026
  • 2025
  • 2022
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015
  • 2014
  • 2013
  • 2012
  • 2011
  • 2010
  • 2009
  • 2008
  • 2007
  • 2006
  • 2005: the original allanleone.com

Get in touch

  • Email: hello@allanleone.com
  • LinkedIn: linkedin.com/in/leoneallan
  • X (Twitter): x.com/allanleone
  • Instagram: instagram.com/allanleone

Extended brief

  • English (extended): /llms-full.txt (~14 KB, comprehensive)