Jonny Smillie · UK

About

Hello, I am Jonny Smillie, a web developer based in the UK. I have been working on websites for over a decade and I have a passion for pragmatic solutions and design. I create and manage websites and digital experiences for a variety of clients from independent small businesses to global companies.

Jonny Smillie
polkadot.networkmetamask.iocardano.orgconsensys.netiohk.iosubstrate.iodocs.cardano.orgmymlancatamaran.com

Stack

Skills & Technologies

Foundation

Web toolkit

Core languages and UI libraries I ship with daily: pragmatic, readable, and built to last.

HTML5 CSS3 JavaScript TypeScript React
Sass
GitHub
Git
Figma
Astro
Tailwind CSS
Next.js
Node.js
Supabase

Open source

Github Activity

Profile

Public contributions

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Activity

Shipping in the open

Docs, sites, and side projects

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View on GitHub

Career

Experience

With over a decade of experience, I have had the privilege of working with industry leaders in the blockchain space and a variety of independent clients. My roles have spanned from hands-on development to product and team management, consistently delivering high-quality web assets.

Web Developer, Parity Technologies

Remote – 2022 - 2024

  • Led the ground-up rebuild of the Substrate documentation website using TypeScript and React.
  • Drove the full reconstruction of the main Polkadot network website.
  • Collaborated with the documentation team to continuously refine and deploy technical content.
  • Shipped frequent updates and new features across all Polkadot and Substrate web properties.

Frontend Engineer, Consensys Software Inc.

Remote – 2021 - 2022

  • Spearheaded UX and DX enhancements across company websites.
  • Directed the complete architectural rebuild of metamask.io in React.
  • Partnered with the marketing team to deliver dynamic content updates on the main company website.
  • Oversaw an external development team to ensure project alignment and quality.

Full Stack Web Developer, Input Output Hong Kong

Remote – 2017-2021

  • Joined as the second web developer, playing a key role in team expansion and strategy.
  • Pioneered the adoption of modern static sites with React and a headless CMS.
  • Architected and rebuilt major public-facing websites, including cardano.org and iohk.io.
  • Developed and launched multiple successful documentation sites and microsites for global company events.

Web Developer, Better2Know

Lancaster, UK – 2017

  • Advised on strategic business development and digital transformation opportunities.
  • Advised on the company's transition from a call center model to a scalable web-based platform.
  • Upgraded and modernized critical legacy codebases written in PHP.

Head of Product, Vibe Tickets

Lancaster, UK – 2015 - 2017

  • Recruited as the first employee, integral to shaping the company's product vision.
  • Co-led the end-to-end development and launch of a cross-platform mobile application.
  • Built the company's primary website and internal Content Management System.
  • Defined and executed on the core application UX strategy.

Web Developer and Studio Support, The Creative Branch

Lake District, UK – 2014 - 2015

  • Produced high-impact, design-focused web assets for a diverse client portfolio.
  • Developed and managed bespoke email marketing campaigns to drive client engagement.
  • Handled client relationships, account management, and invoicing.