Design Systems Architect: Lead UI Tokens & Components

Rex; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Marex is seeking a senior Product Designer to own the Marex Design System (MDS) and align tokens, components and theming across product teams. You’ll work with the Lead Product Designer and UI Engineer to deliver a standardised, self-serve system that delivers a consistent user experience.

In this role you’ll ensure design and code stay in sync, drive adoption of design standards, and help shape the roadmap based on product impact across trading, risk and data platforms.

Qualifications

• 6+ years in product design, including time owning a design system other teams depend on.
• Experience delivering reusable design systems across multiple products.
• Strong Figma skills: variants, variables, component architecture.
• Familiarity with MUI or a React component library and understanding of React structure.

Responsibilities

• Own the design system: components, tokens, patterns, documentation and governance.
• Shape the roadmap with the Lead Product Designer based on impact across products.
• Put processes in place for contribution, review, versioning, release and deprecation and run them.
• Spend time with the business to understand who uses the Design System and how.
• Work with brand and engineering to reflect Marex identity and feasible builds.
• Measure adoption and raise systemic thinking across the design team.

Skills

Product design

Design system ownership

Figma

Tools

MUI

React

Job description

Marex is seeking a senior Product Designer to own the Marex Design System (MDS) and align tokens, components and theming across product teams. You’ll work with the Lead Product Designer and UI Engineer to deliver a standardised, self-serve system that delivers a consistent user experience.

In this role you’ll ensure design and code stay in sync, drive adoption of design standards, and help shape the roadmap based on product impact across trading, risk and data platforms.