{"schemaVersion":"jobsearcher.job.v1","id":"81b569742c8c29bb273a41cc","url":"https://jobsearcher.com/jobs/81b569742c8c29bb273a41cc","canonicalUrl":"https://jobsearcher.com/jobs/81b569742c8c29bb273a41cc","title":"Senior JavaScript Front-End Developer","description":"Position: Senior JavaScript Front-End Developer Location: Hoboken, NJ***REMOTE***Duration: 1 YearsJob Description: Front-end engineering (the foundation - non-negotiable):Deep, senior-level React (React 19 / modern React): the render model, hooks discipline, memorization, effect timing, and a real feel for where re-renders and stale closures come from - which matter acutely in an app running a physics loop every frame.Three.js and React Three Fiber in production. Real command of the scene graph, geometry and materials, the use Frame render loop, and disposal / memory management (WebGL leaks are a real hazard). This is the heart of the role and the skill we weight most heavily - React experience without R3F is not a substitute.Real-time performance discipline. You think in frame budgets, know what drives GPU vs CPU cost, can profile a render loop, and habitually design for the weakest target device.State management at scale with Zu stand (or clearly transferable experience), keeping a growing state model coherent rather than tangled.Accessibility as a first-class skill - keyboard navigation, focus management, ARIA, WCAG AA, screen-reader testing. For an education product this is a core requirement and a procurement gate, not an afterthought.ResponsibilitiesTypeScript, testing, and modern tooling - TypeScript fluency, Vite, a real testing discipline (we favor testing real behavior over mocks), and the judgment to set the quality bar for others. Responsibilities:Build and own complex React Three Fiber features: interactive 3D equipment, a selection-driven action system, real-time visual effects, and the UI around them.Keep the app fast on low-end hardware - profile and tune the render loop, manage GPU/CPU cost, and hold a frame budget on Chromebook-class devices.Keep application state coherent as it grows (simulation state, equipment state, an event log used for assessment, and UI state) using Zu stand.Make accessibility real: full keyboard operation, focus management, ARIA, and screen-reader support are core requirements here, not polish.Direct Claude Code effectively - decompose work into well-specified, agent-sized tasks, review the output with a senior eye, and know when to write something by hand instead.Help maintain the conventions, CLAUDE.md guidance, and repo structure that keep AI-generated code consistent and safe.Collaborate with our 3D technical artist to integrate assets and shaders cleanly.Key ResponsibilitiesBuild and own complex React Three Fiber features: interactive 3D equipment, a selection-driven action system, real-time visual effects, and the UI around them.Keep the app fast on low-end hardware - profile and tune the render loop, manage GPU/CPU cost, and hold a frame budget on Chromebook-class devices.Keep application state coherent as it grows (simulation state, equipment state, an event log used for assessment, and UI state) using Zu stand.Make accessibility real: full keyboard operation, focus management, ARIA, and screen-reader support are core requirements here, not polish.Direct Claude Code effectively - decompose work into well-specified, agent-sized tasks, review the output with a senior eye, and know when to write something by hand instead.Help maintain the conventions, CLAUDE.md guidance, and repo structure that keep AI-generated code consistent and safe.Collaborate with our 3D technical artist to integrate assets and shaders cleanly.Skill RequirementsDeep, senior-level React (React 19 / modern React): the render model, hooks discipline, memorization, effect timing, and a real feel for where re-renders and stale closures come from - which matter acutely in an app running a physics loop every frame.Three.js and React Three Fiber in production. Real command of the scene graph, geometry and materials, the use Frame render loop, and disposal / memory management (WebGL leaks are a real hazard).This is the heart of the role and the skill we weight most heavily - React experience without R3F is not a substitute.Real-time performance discipline. You think in frame budgets, know what drives GPU vs CPU cost, can profile a render loop, and habitually design for the weakest target device.State management at scale with Zu stand (or clearly transferable experience), keeping a growing state model coherent rather than tangled.Accessibility as a first-class skill - keyboard navigation, focus management, ARIA, WCAG AA, screen-reader testing. For an education product this is a core requirement and a procurement gate, not an afterthought","company":"Inherent Technologies","rawCompany":"inherent technologies","city":"New York","state":"NY","isRemote":false,"isActive":false,"createdAt":"2026-11-15T07:08:18.419Z","occupations":[{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1255.00","title":"Web and Digital Interface Designers","slug":"web-and-digital-interface-designers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior JavaScript Front-End Developer","description":"Position: Senior JavaScript Front-End Developer Location: Hoboken, NJ***REMOTE***Duration: 1 YearsJob Description: Front-end engineering (the foundation - non-negotiable):Deep, senior-level React (React 19 / modern React): the render model, hooks discipline, memorization, effect timing, and a real feel for where re-renders and stale closures come from - which matter acutely in an app running a physics loop every frame.Three.js and React Three Fiber in production. Real command of the scene graph, geometry and materials, the use Frame render loop, and disposal / memory management (WebGL leaks are a real hazard). This is the heart of the role and the skill we weight most heavily - React experience without R3F is not a substitute.Real-time performance discipline. You think in frame budgets, know what drives GPU vs CPU cost, can profile a render loop, and habitually design for the weakest target device.State management at scale with Zu stand (or clearly transferable experience), keeping a growing state model coherent rather than tangled.Accessibility as a first-class skill - keyboard navigation, focus management, ARIA, WCAG AA, screen-reader testing. For an education product this is a core requirement and a procurement gate, not an afterthought.ResponsibilitiesTypeScript, testing, and modern tooling - TypeScript fluency, Vite, a real testing discipline (we favor testing real behavior over mocks), and the judgment to set the quality bar for others. Responsibilities:Build and own complex React Three Fiber features: interactive 3D equipment, a selection-driven action system, real-time visual effects, and the UI around them.Keep the app fast on low-end hardware - profile and tune the render loop, manage GPU/CPU cost, and hold a frame budget on Chromebook-class devices.Keep application state coherent as it grows (simulation state, equipment state, an event log used for assessment, and UI state) using Zu stand.Make accessibility real: full keyboard operation, focus management, ARIA, and screen-reader support are core requirements here, not polish.Direct Claude Code effectively - decompose work into well-specified, agent-sized tasks, review the output with a senior eye, and know when to write something by hand instead.Help maintain the conventions, CLAUDE.md guidance, and repo structure that keep AI-generated code consistent and safe.Collaborate with our 3D technical artist to integrate assets and shaders cleanly.Key ResponsibilitiesBuild and own complex React Three Fiber features: interactive 3D equipment, a selection-driven action system, real-time visual effects, and the UI around them.Keep the app fast on low-end hardware - profile and tune the render loop, manage GPU/CPU cost, and hold a frame budget on Chromebook-class devices.Keep application state coherent as it grows (simulation state, equipment state, an event log used for assessment, and UI state) using Zu stand.Make accessibility real: full keyboard operation, focus management, ARIA, and screen-reader support are core requirements here, not polish.Direct Claude Code effectively - decompose work into well-specified, agent-sized tasks, review the output with a senior eye, and know when to write something by hand instead.Help maintain the conventions, CLAUDE.md guidance, and repo structure that keep AI-generated code consistent and safe.Collaborate with our 3D technical artist to integrate assets and shaders cleanly.Skill RequirementsDeep, senior-level React (React 19 / modern React): the render model, hooks discipline, memorization, effect timing, and a real feel for where re-renders and stale closures come from - which matter acutely in an app running a physics loop every frame.Three.js and React Three Fiber in production. Real command of the scene graph, geometry and materials, the use Frame render loop, and disposal / memory management (WebGL leaks are a real hazard).This is the heart of the role and the skill we weight most heavily - React experience without R3F is not a substitute.Real-time performance discipline. You think in frame budgets, know what drives GPU vs CPU cost, can profile a render loop, and habitually design for the weakest target device.State management at scale with Zu stand (or clearly transferable experience), keeping a growing state model coherent rather than tangled.Accessibility as a first-class skill - keyboard navigation, focus management, ARIA, WCAG AA, screen-reader testing. 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