Summation
Senior Design Engineer
Bellevue, WA · Senior
Sponsorship not specifiedDetected 103 days ago
TypeScriptReactNext.jsHTMLCSSTailwind CSSExpressData VisualizationFigmaDesign SystemsAccessibility
About the role
- Craft motion and micro-interactions that clarify meaning and reduce cognitive load
- Translate flows and states from Figma into resilient, testable components with strong state management
- Establish guardrails: lint rules, Storybook checks, accessibility checks, visual regression in CI
Responsibilities
- Build production UI in React and TypeScript for Summation's web app
- Prototype end-to-end product ideas in code, validate with real data, and graduate winners into production
- Partner with data visualization to express complex financial concepts with clarity
- Love working across design and code, and care about the details users feel
- semantic HTML, WCAG basics, keyboard and screen reader support, automated checks
- Design Engineering at Summation lives at the intersection of product design and frontend engineering.
- As a Senior Design Engineer, you will ship beautiful, high-performance product experiences in production code, lead our design system, prototype new interactions, and raise the bar on accessibility, motion, and polish.
- You will partner closely with Product, Design, and Engineering, moving from Figma to code to shipped features.
- Lead the Summation Design System: tokens, components, theming, accessibility, docs, and release workflow
- Drive UI performance: bundle hygiene, code-split plans, rendering strategy, perceived latency
Requirements
- Proven ability to take a concept from Figma to shipped code without heavy PM overhead
Nice to have
- Remix or Next.js, Tailwind, shadcn/ui
- WebGL or Canvas experience for advanced interactions
- Visual regression and accessibility tooling in CI
- Experience in fintech, analytics, or complex data products
Company info
- Summation is building an AI Business Planning Platform for CFOs and finance teams.
- We combine a real-time modeling layer with Addison, our AI calculation engine, to turn messy enterprise data into decision-grade insights.
- Customers use Summation to model scenarios, explain variances, and automate weekly and monthly reviews.
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This listing is sourced directly from Summation's careers page and normalized into a canonical job model.