Senior Design Engineer
Remote · Bellevue, Washington, United States or US
Job Summary
As a Senior Design Engineer at Summation, you will design and implement high-performance product experiences using React and TypeScript. Responsibilities include leading the design system, prototyping product ideas, enhancing UI performance, and ensuring accessibility. You will collaborate with cross-functional teams while mentoring others in design and engineering practices. The role requires experience in building production web UI, strong CSS skills, and familiarity with data visualization and design systems.
Required Qualifications
- 4+ years building production web UI with React and TypeScript
- Strong CSS fundamentals: layout, fluid type and spacing, responsive systems, motion
- Design system experience: tokens, component architecture, Storybook, documentation
- Data visualization in production using one of Recharts, D3, Visx, ECharts, or similar
- Accessibility and quality: semantic HTML, WCAG basics, keyboard and screen reader support, automated checks
- Figma fluency: components, variants, auto-layout, dev mode, and handoff
- Proven ability to take a concept from Figma to shipped code without heavy PM overhead
Desired Qualifications
- Remix or Next.js experience
- Tailwind knowledge
- Framer Motion for interaction design
- WebGL or Canvas experience for advanced interactions
- Experience in fintech, analytics, or complex data products
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