Marex

product designer for the design system

In short

Senior product designer role owning Marex's design system (components, tokens, patterns, documentation, governance) in a London-based fintech platform spanning energy, commodities and financial markets. Requires 6+ years in product design with proven experience running a design system used by other teams, strong Figma skills (variants, variables, component architecture, tokens), and comfort bridging design and code (MUI/React). Onsite in London, full-time.

About Marex
Marex Group plc is a global financial services platform providing liquidity, market access and infrastructure services across energy, commodities and financial markets. Its services include clearing, agency and execution, market making, and hedging and investment solutions.
Responsibilities
•Own the design system, including components, tokens, patterns, documentation and governance
•Shape the roadmap with the Lead Product Designer based on impact across products
•Establish and run contribution, review, versioning, release and deprecation processes
•Engage with the business to understand who uses MDS and how
•Identify shared patterns across products with product teams and development streams, and turn them into system components
•Keep Figma and code aligned, and plan migrations when they diverge
•Build components and tokens to standards engineers can implement directly
•Work with brand and engineering teams to ensure the system reflects Marex's identity and is feasible to build
•Measure adoption and promote systems thinking across the design team
•Comply with regulatory requirements and the operational risk framework, internal policies and the FCA Code of Conduct
•Demonstrate integrity and conduct in line with company values
•Report policy breaches and escalate risk events immediately
•Contribute to risk management processes as required
•Follow the Conduct Rules: act with integrity, due skill, care and diligence; cooperate with regulators; treat customers fairly; observe proper market conduct; and deliver good outcomes for retail customers
Requirements
•6+ years in product design, including experience owning a design system used by other teams
•Strong Figma skills, including variants, variables, component architecture, library publishing and token workflows
•Comfortable with how design systems are implemented in code; ideally experienced with MUI or a comparable React library and familiar with React component structure
•Comfortable using AI tools in daily work, with experience designing and writing for AI, including prompts, agent instructions and AI-driven interfaces
•Able to work independently amid ambiguity and establish missing structure
•Experienced in bridging design and development and keeping them aligned
•Pragmatic, clear and concise, and comfortable taking on multiple responsibilities in a small team
•Able to influence without authority and build trust with product teams and engineers to drive adoption and contribution
•Strong systems thinking, with the ability to identify and abstract shared patterns across products
•Champions new ways of working, including AI, across the team
•Candidates with less experience will also be considered
Nice to have
•Experience with dense, data-heavy interfaces such as trading, operations or finance
•UX research and usability testing
•Prototyping
•Working directly with product owners, BAs and developers to shape requirements
•AI tooling in design systems and design-to-code token pipelines
•Storybook
•Accessibility for dark themes and dense data
•Familiarity with financial markets or post-trade workflows
Conditions
Not specified in the posting.

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