iSummation Technologies

Senior Design Engineer

iSummation Technologies

full-time

Posted on:

Location Type: Hybrid

Location: Bellevue • Washington • United States

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Job Level

Senior

Tech Stack

D3.jsReactTypeScript

About the role

  • Build production UI in React and TypeScript for Summation’s web app
  • Lead the Summation Design System: tokens, components, theming, accessibility, docs, and release workflow
  • Prototype end-to-end product ideas in code, validate with real data, and graduate winners into production
  • 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
  • Drive UI performance: bundle hygiene, code-split plans, rendering strategy, perceived latency
  • Partner with data visualization to express complex financial concepts with clarity
  • Establish guardrails: lint rules, Storybook checks, accessibility checks, visual regression in CI
  • Mentor engineers and designers on interaction patterns, system thinking, and front-of-frontend craft
  • Contribute to product quality across the stack through reviews, pairing, and high-signal documentation

Requirements

  • 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
Benefits
  • Professional development
  • Hybrid work arrangement
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
ReactTypeScriptCSSData visualizationFigmaAccessibilitySemantic HTMLWCAGStorybookComponent architecture
Soft Skills
MentoringCollaborationPrototypingSystem thinkingInteraction patterns