{"id":2191738,"url":"https://alion.io/job/aion-senior-design-engineer","title":"Senior Design Engineer","company":{"id":5279,"name":"Aion","domain":"aion.io","url":"https://alion.io/company/aion","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":null},"role":"Design","role_family":"Design","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["San Francisco, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":132000,"max_usd":240000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":657},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Adobe After Effects","optional":false},{"name":"Blender","optional":false},{"name":"Cinema 4D","optional":false},{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"Fine-tuning","optional":false},{"name":"GLSL","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"React Three Fiber","optional":false},{"name":"React.js","optional":false},{"name":"Rive","optional":false},{"name":"Three.JS","optional":false},{"name":"TypeScript","optional":false},{"name":"WebGPU","optional":false},{"name":"WGSL","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-09T18:11:07Z","employer_posted_date":"2026-10-09","last_verified_at":"2026-10-12T01:19:22Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"About aion\naion is the enterprise AI platform, a full-stack solution for building, fine-tuning, and deploying AI at scale. Whether an organization is modernizing internal operations, launching AI-powered products, or transforming customer experiences, aion takes them from concept to production on a single, unified platform.\nWe’re a fast-growing, VC-backed startup led by founders with a track record of successful exits. With teams across the US, UK, and India, we’re building the next generation of enterprise AI and we’re looking for exceptional people to help us scale.\nWe're hiring a design engineer who builds like a founder. You see what's missing and make it exist: you design it, build it, ship it and own it. Code is your design material, and you write a shader when CSS runs out. The bar is an interface that feels physical: it tracks the finger, carries momentum and never drops a frame.\nWhat you'll do\nTake ideas from a blank file to production: decide what's worth building, prototype it in code, and own it once it ships.\nBuild production UI in React and TypeScript, from primitives to complete surfaces.\nBuild the custom tools that make the team faster: design-system tooling, motion tuners, debug overlays and internal apps.\nTune motion and gestures until they feel physical: momentum, weight and interruption.\nCreate 3D, shader and generative work where it lifts the experience.\nReview every build on real devices at 1× and 2×, and keep it fast, accessible and robust under abuse.\nRequirements\nInteraction\nYou treat interaction design as thinning the layer between intent and software, and your work has moments where the interface inferred what someone wanted instead of asking.\nPhysics is a toolkit to you, not a style: springs tuned by stiffness, damping and mass; velocity projected on release so a flick finishes the job; rubber banding where a hard stop would feel broken; secondary elements interpolated from the gesture driving them.\nYou give movement conceptual weight: light things settle quickly, heavy and destructive things resist, and bounce appears only where something was thrown.\nYour gestures have three beats, constrain on start, track 1:1 on move, resolve on end, and stay contained: no stray text selection, no triggered neighbours, no pointer lost at the edge.\nChoreography is second nature: the primary element answers instantly, secondary elements follow late, exits clear faster than entrances arrive, and a touch of blur hides the seams.\nYour restraint scales with frequency and input: touch gets the most feedback, the pointer some, the keyboard almost none, and anything used a hundred times a day loses its animation.\nCraft\nYou build without waiting: when a tool, component or prototype doesn't exist, you make it, and you've shipped things of your own that people use.\nCode is your design material. You judge an idea by building and using it, prototype in the browser rather than in static frames, and polish only once the idea has earned it.\nYou iterate until nothing is left to explore, then have the discipline to choose the simple version from many iterations back.\nRobustness is binary to you: you spam every state, scroll too fast, drag past every edge, and cut any detail that can't work every time.\nYou see at the pixel: optical alignment at high zoom, animations scrubbed frame by frame, and before-and-after captures on every change.\nNative first: real scroll over hijacked wheel events, clip-path over animating width, CSS keyframes before reaching for a library.\nYou study the work you admire by rebuilding it, then make something unmistakably your own.\nEngineering\n5+ years shipping production front ends, with live work you can link to.\nReact and TypeScript at expert level, with component APIs that don't lie: contextual props, derived state, variants over boolean flags and compound components.\nMotion values and direct DOM updates for anything high-frequency, so gestures and scroll never wait on a render.\nCSS in depth: clip-path, masks, backdrop filters, blend modes, scroll-driven animations, container queries and the View Transitions API.\nType and pixels in code: variable fonts, optical sizing, OpenType features, and layouts free of shift and subpixel blur at 1×, 2× and 3×.\nPerformance as a feature: an 8 ms frame budget at 120 Hz, compositor-only animation, and pages that load instantly because every byte was questioned.\nAccessibility as craft: focus rings styled rather than removed, focus moved into overlays and back, full keyboard paths and reduced-motion settings honoured.\n3D and creative\nReal-time 3D with Three.js or React Three Fiber on WebGL or WebGPU.\nShaders in GLSL or WGSL: noise, signed distance fields, glass, refraction, lighting and post-processing, all inside the frame budget.\nMotion studies in After Effects and 3D in Cinema 4D or Blender, so ideas move before a line of production code exists.\nGenerative and data-driven work in Canvas and SVG, and interactive animation in Rive.\nBuilding for AI\nInterfaces for streamed, non-deterministic output: progressive rendering, interruption and retry.\nYou build daily with AI coding tools such as Claude Code, Cursor or Codex, use them to ship whole tools and products on your own, and review every line they write.\nGood to have\nCustom tools you built that others rely on: plugins, design and motion tooling, debug overlays, generators or internal apps.\nSomething you started and shipped yourself: a product, a studio, a library or a side project with real users/customers.\nWriting and articles about your craft: essays, breakdowns or notes that show how you think.\nCreative coding or generative art.\nOpen-source work in motion, graphics or UI components.\nBenefits\nWork directly with high-pedigree founders shaping technical and product strategy.\nBuild infrastructure powering the future of AI compute globally.\nSignificant ownership and impact with equity reflective of your contributions.\nCompetitive compensation, flexible work options, and wellness benefits.","description_format":"text","description_chars":6003,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity","Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents","AI Consulting & Integration","AI Development Tools"],"lifecycle":[{"event":"open","at":"2026-10-09T18:11:07Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":61,"reasons":["conf:2","win:early"],"computed_at":"2026-10-10T05:45:15Z"},"pay":null,"html_url":"https://alion.io/job/aion-senior-design-engineer","json_url":"https://alion.io/job/aion-senior-design-engineer.json","meta":{"generated_at":"2026-10-12T04:05:39Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per 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