Joss Mackison

Front-end developer. Passionate about design-systems, with an emphasis on user experience and accessibility.

Specialties

• Design Systems
• Accessibility
• Content Management Systems
• React

Find Joss on

• GitHub

• Design System kickoff checklist
  So, you want to build a design system? Here’s a list of questions to consider before you get started to avoid running into issues in the future.
  April 2024 ·11 min read

• Accessibility at Thinkmill
  How we approach the multi-faceted world of accessible design, and how improvements made for one user group can benefit all of us.
  May 2023 ·4 min read

• Using CSS logical properties for internationalisation
  We discuss the juiciest bits of an internal Slack conversation on design systems and logical properties. Served up with a dose of casual chat, two of our design systems experts – Joss Mackison and Luke Bennett – unpack best practices for the use of CSS logical properties for better internationalisation in design systems.
  December 2022

• New TypeScript utilities released as OSS
  Design-engineer Joss Mackison has released a new open source collection of utilities that smooth out the rough edges of working with TypeScript.
  September 2022

More posts from other Thinkmill voices

• Designing beyond the median user
  For seventy years software has shipped one shape to every user. The confluence of design systems, headless platforms, and agent-native exposure has coalesced to make that constraint optional. A retrospective of the median-user problem and the new architectural horizon now opening.
  June 2026 ·10 min read
• What engineering teams owe for the AI speed boost
  AI-assisted development genuinely accelerated engineering teams, but many organisations stopped at the velocity gains and ignored the accumulating debt. The costs: code nobody fully understands, weakened code review culture, bloated dependency trees, and architectural decisions made without real judgement about tradeoffs...
  May 2026 ·4 min read
• A behavioural framework for the monsters in your team
  The AI in Design 2026 report captures a profession mid-mutation. The "Frankenjob" label the coverage put on it misses the seam where the real work happens.
  May 2026 ·5 min read