Senior Designer, Design System

Responsibilities

• Partner with the Design Systems Lead to evolve and scale Ninja Trader’s design system across web, desktop, and mobile experiences
• Create, document, and maintain high-quality reusable UI components, patterns, templates, and interaction guidelines
• Maintain and extend design token architecture that supports scalable implementation across platforms
• Collaborate directly with Engineering to ensure design system components are accurately implemented and maintained in Storybook and production
• Identify opportunities to improve consistency, usability, accessibility, and efficiency throughout the product ecosystem
• Build and optimize Figma libraries, variables, plugins, automation, and AI-assisted workflows to streamline design operations
• Support product designers by providing guidance, documentation, onboarding, and best practices for using the design system effectively
• Contribute to governance processes that ensure the design system evolves intentionally while supporting product velocity
• Help define and track adoption metrics, component health, and system usage to continuously improve the effectiveness of the design system

• 7+ years of experience in UX, UI, or Product Design, including at least 2 years focused on design systems
• Demonstrated experience designing, documenting, and maintaining scalable component libraries and design systems for complex digital products
• Expert proficiency in Figma, including components, variables, auto layout, libraries, and modern workflow automation
• Strong understanding of design tokens, component architecture, and design-to-development workflows
• Working knowledge of Storybook and modern frontend technologies (HTML, CSS, JavaScript frameworks)
• Familiarity with accessibility standards (WCAG) and inclusive design practices
• Strong visual design, interaction design, and systems thinking skills with a portfolio demonstrating scalable design solutions
• Experience balancing consistency with product flexibility across multiple teams and products
• Excellent communication, collaboration, and documentation skills with the ability to influence without direct authority
• Passion for craftsmanship, continuous improvement, and elevating design quality across an organization