--- title: 'Senior Design Engineer at Summation' canonical: 'https://feeny.ai/job/senior-design-engineer-summation-bellevue-kxdmemgpnmh3' type: 'job' last_seen: '2026-09-11' --- # Senior Design Engineer at Summation - **Company:** Summation - **Location:** Bellevue, WA - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-04-10 - **Last confirmed live:** 2026-09-11 - **Apply:** https://jobs.ashbyhq.com/summation/a31fa354-3c41-4153-a16e-21a7c7c7e380 ## Job description ## About Summation 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. ## The Role 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. Roles & Responsibilities - 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 You will love this role if you - Love working across design and code, and care about the details users feel - Think in systems: tokens, states, variants, docs, upgrade paths - Prototype ideas fast and are comfortable deleting code after an experiment - Believe accessibility, performance, and clarity are product features - Enjoy collaborating with PMs, designers, and backend engineers in a high-context startup Required experience - 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 ## Nice to have - Remix or Next.js, Tailwind, shadcn/ui - Framer Motion for interaction design - WebGL or Canvas experience for advanced interactions - Visual regression and accessibility tooling in CI - Experience in fintech, analytics, or complex data products ## About Summation ## Company Overview - **One-liner**: Summation is a decision-grade AI platform that connects to live enterprise data to produce verified, exec-ready reports and analysis in minutes. - **Entity Type**: Private (Series A) - **Headquarters**: Bellevue, Washington, United States - **Founded**: 2024 - **Founders**: Ian Wong (CEO) and Ramachandran "RC" Ramarathinam (CTO) ## Core Business - Primary industry/industries: AI-powered Enterprise Analytics & Business Intelligence - Target customers: B2B, primarily Enterprise leaders (C-suite, FP&A, Revenue Operations) needing fast, trustworthy data analysis. - Mission or purpose statement: To bridge the gap between a business question and a trusted answer, turning analysis into durable, traceable artifacts that teams can trust, reuse, and run on. ## Products & Services - **[Summation Platform]**: A decision-grade AI platform (SaaS) that connects to a company's existing data stack (ERP, CRM, data warehouses, spreadsheets). Users describe a need (e.g., "business review," "forecast update"), and the platform uses AI agents to generate a polished, exec-ready report with every figure linked back to its source for a full audit trail. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed. - **Key Metric**: Total Funding of **$35.0M** across two rounds. - **Notable Investors/Partners**: Backed by **Benchmark** and **Kleiner Perkins**. - **Growth Signals**: Headquartered in Bellevue, WA with offices in San Francisco, CA and Chennai, India. Rapid headcount growth of **+69.2% YoY** (33 employees). Strong hiring momentum with 6+ active job postings. ## Competitive Advantages - **Verification & Trust**: Unlike "black box" AI, every output figure is traceable back to its source data, providing an audit trail that enterprise leaders require. - **Speed & Polish**: Transforms what typically takes days of manual work into a process that produces boardroom-ready reports in minutes. - **Deep Integrations**: Connects directly to live financial and operational systems, not just static exports, providing real-time context. ## Strategic Focus - **Scaling the Team**: Actively hiring across Engineering, GTM, and Design roles to build out the product and enter the market. - **Enterprise Adoption**: Focused on serving enterprise leaders who need high-trust, verified analysis to make critical decisions in the AI era. ## Why Work Here - **High-Impact Role**: Join an early-stage, well-funded startup (backed by top-tier VCs) with a clear product-market fit in a hot space (Enterprise AI). - **Culture**: Described as a collaborative environment where your voice matters, with opportunities for growth and career development. - **Remote/Hybrid Policy**: Offers flexibility with roles listed as Remote, Hybrid, or On-site depending on the position and location (Bellevue, San Francisco, Chennai, India). - **Notable Perks**: Competitive salary and equity, Flexible (Unlimited) Paid Time Off, Medical/Dental/Vision, 401(k) Plan, and Parental Leave. ## Sources 1. [summation.com](https://www.summation.com/company) 2. [summation.com](https://www.summation.com/careers) 3. [summation.com](https://www.summation.com/) 4. [linkedin.com](https://www.linkedin.com/company/summation-hq) 5. [builtin.com](https://builtin.com/company/summation) ## Other roles at Summation - [Solution Lead](https://feeny.ai/job/solution-lead-summation-bellevue-ha067czvf4ht) — Bellevue, WA - [Staff Product Engineer](https://feeny.ai/job/staff-product-engineer-summation-bellevue-gzn3b0cp751b) — Bellevue, WA - [Senior Software Engineer](https://feeny.ai/job/senior-software-engineer-summation-india-vfwv83d84yed) — India - [Account Executive](https://feeny.ai/job/account-executive-summation-bellevue-k3gkx30aamgj) — Bellevue, WA - [Forward Deployed Engineer](https://feeny.ai/job/forward-deployed-engineer-summation-bellevue-p6aabm3yrr6p) — Bellevue, WA - [General Application](https://feeny.ai/job/general-application-summation-bellevue-d2hyx1szrwgb) — Bellevue, WA - [Senior Platform Engineer](https://feeny.ai/job/senior-platform-engineer-summation-bellevue-sma9s1sc357g) — Bellevue, WA - [Senior Design Engineer](https://feeny.ai/job/senior-design-engineer-assemblyai-denver-pemkbyvaacy9) — Denver, CO - [Senior Design Engineer](https://feeny.ai/job/senior-design-engineer-assemblyai-chicago-w7wy70w21fmm) — Chicago, IL - [Senior Design Engineer](https://feeny.ai/job/senior-design-engineer-assemblyai-los-angeles-rt4p6ayntpw9) — Los Angeles, CA