{"id":49856,"url":"https://alion.io/job/summation-senior-design-engineer","title":"Senior Design Engineer","company":{"id":10935,"name":"Summation","domain":"summation.com","url":"https://alion.io/company/summation","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":5,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-02T05:45:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bellevue, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":103000,"max_usd":197000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":2941},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache ECharts","optional":false},{"name":"Figma","optional":false},{"name":"React.js","optional":false},{"name":"Recharts","optional":false},{"name":"Storybook","optional":false},{"name":"TypeScript","optional":false},{"name":"visx","optional":false},{"name":"D3.js","optional":true},{"name":"Framer Motion","optional":true},{"name":"JavaScript","optional":true},{"name":"Next.js","optional":true},{"name":"Radix UI","optional":true},{"name":"Remix","optional":true},{"name":"shadcn/ui","optional":true},{"name":"Tailwind CSS","optional":true}],"status":"live","first_seen_at":"2026-04-10T15:55:31Z","employer_posted_date":"2026-04-10","last_verified_at":"2026-10-02T16:43:03Z","board_verified":true,"closed_at":null,"days_open":175,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":174},"description":"About Summation\nSummation 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.\nThe Role\nDesign 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.\nRoles & Responsibilities\nBuild production UI in React and TypeScript for Summation’s web app\n\nLead the Summation Design System: tokens, components, theming, accessibility, docs, and release workflow\n\nPrototype end-to-end product ideas in code, validate with real data, and graduate winners into production\n\nCraft motion and micro-interactions that clarify meaning and reduce cognitive load\n\nTranslate flows and states from Figma into resilient, testable components with strong state management\n\nDrive UI performance: bundle hygiene, code-split plans, rendering strategy, perceived latency\n\nPartner with data visualization to express complex financial concepts with clarity\n\nEstablish guardrails: lint rules, Storybook checks, accessibility checks, visual regression in CI\n\nMentor engineers and designers on interaction patterns, system thinking, and front-of-frontend craft\n\nContribute to product quality across the stack through reviews, pairing, and high-signal documentation\n\nYou will love this role if you\nLove working across design and code, and care about the details users feel\n\nThink in systems: tokens, states, variants, docs, upgrade paths\n\nPrototype ideas fast and are comfortable deleting code after an experiment\n\nBelieve accessibility, performance, and clarity are product features\n\nEnjoy collaborating with PMs, designers, and backend engineers in a high-context startup\n\nRequired experience\n4+ years building production web UI with React and TypeScript\n\nStrong CSS fundamentals: layout, fluid type and spacing, responsive systems, motion\n\nDesign system experience: tokens, component architecture, Storybook, documentation\n\nData visualization in production using one of Recharts, D3, Visx, ECharts, or similar\n\nAccessibility and quality: semantic HTML, WCAG basics, keyboard and screen reader support, automated checks\n\nFigma fluency: components, variants, auto-layout, dev mode, and handoff\n\nProven ability to take a concept from Figma to shipped code without heavy PM overhead\n\nNice to have\nRemix or Next.js, Tailwind, shadcn/ui\n\nFramer Motion for interaction design\n\nWebGL or Canvas experience for advanced interactions\n\nVisual regression and accessibility tooling in CI\n\nExperience in fintech, analytics, or complex data products","description_format":"text","description_chars":3031,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-04-10T15:55:31Z"}],"liveness":{"score":9,"band":"cold","label":"Long shot","p_open":1,"p_active":0.323,"p_room":0.28,"age_days":174,"expected_fill_days":41,"reasons":["conf:26","win:tail","crowd:"],"computed_at":"2026-10-02T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/summation-senior-design-engineer","json_url":"https://alion.io/job/summation-senior-design-engineer.json","meta":{"generated_at":"2026-10-03T03:53:43Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3870,"day_limit":5000,"remaining_today":1130,"minute_limit":60,"resets_at":"2026-10-04T00:00:00Z"}}}