SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Perk (formerly TravelPerk) is an intelligent platform for travel and spend management, trusted by 12,000+ companies including Bolt, GoCardless, and Fabletics. The company operates globally with 1,800+ employees across 12 offices, headquartered in London and Boston.
As Senior Design Systems Designer, you will own the craft and visual direction of Suitcase, Perk's design system that supports 25+ designers and engineers across web and mobile platforms. Your role is to establish Suitcase as a complete, consumer-grade, accessible, and distributable system ensuring Perk feels consistent across all customer touchpoints, including AI agents and assistants.
Key responsibilities include:
- Setting strategic direction for Suitcase with design and engineering leadership, creating roadmaps with named resources and tracking progress
- Owning the visual language, token architecture, and foundations (typography, colour, space, motion, interaction states)
- Collaborating with content design and localization teams on content tokens and language requirements
- Designing, documenting, and refining components with complete states, variants, platform coverage, and usage guidance
- Writing component specifications that AI prototyping tools can interpret for real Suitcase components
- Ensuring WCAG 2.2 AA accessibility compliance and making it standard for new components
- Defining and reporting on adoption metrics, component health, accessibility, and Figma-to-code parity with engineering
- Managing contribution governance for components between experimental and core system layers
- Championing Suitcase adoption across the organization, coaching designers and engineers on system usage and contribution
You will work in an environment where AI is embedded across functions, enabling faster work and focus on high-impact tasks. Perk takes an IRL-first approach with 3 days per week in-office collaboration.
Requirements:
- Strong product design experience with proven track record designing and scaling design systems for fast-growing products on web and mobile
- Deep expertise in typography, colour, layout, motion, and micro-interactions
- Sound judgment on component creation versus reuse decisions
- Hands-on experience designing and maintaining token systems (naming, theming, documentation, Figma-to-code workflows) with working knowledge of HTML, CSS, and JavaScript
- Practical experience designing components to WCAG 2.2 AA standards, including keyboard and screen-reader behaviour
- Experience prototyping with AI tools, Storybook, Code Connect, and MCP tooling; understanding of design-system-to-code and AI tool integration
- Ability to guide non-designers through problem-solving and build adoption through persuasion
- Clear design perspective with ability to make and defend trade-off decisions
- Experience leveraging customer insights from research, support, and sales data to drive business outcomes
- Strong voice in roadmap shaping, sequencing, and scope management; ability to push back diplomatically when systems are bypassed
- Experience integrating or consolidating design systems
- Familiarity with content and localization considerations in component design
