[Hiring] Senior Front End Engineer @Knotch

Role Description

You'll split your time between two front ends at very different stages:

• Knotch ACE: Generates web experiences from AI in real time, using Next.js App Router and TypeScript in a monorepo.
• Knotch One: A mature React application built on Redux, GraphQL, and styled-components, focused on data visualization.

Responsibilities include:

• Build features across both applications, adhering to existing conventions.
• Develop the component system for streamed, AI-generated layouts — schemas, renderers, and contracts.
• Work on multi-tenant theming: design tokens, per-brand configuration, and client-specific variants.
• Build and maintain embeds that run our product inside customer websites.
• Set standards for testing, accessibility, and performance.
• Collaborate with backend engineers on API and streaming contracts.
• Document your approach before building, and raise blockers, risks, and disagreements early.
• Ramp up on unfamiliar parts of the product and mentor others through code review and pairing.

Qualifications

• 6+ years building React applications in production.
• TypeScript experience, including typing data that arrives at runtime.
• Familiarity with Next.js App Router or similar frameworks (Remix, Nuxt, SvelteKit).
• Experience in a large codebase with historical context.
• CSS at scale, using utility-first (Tailwind) or CSS-in-JS (styled-components, Emotion).
• Accessible UI work, including keyboard navigation, ARIA, and WCAG testing.
• Data visualization experience with ECharts, D3, Recharts, or similar.
• Experience writing tests alongside features (Vitest, Jest, Testing Library).
• Clear written communication and ability to work without close supervision.

Requirements

• Runtime schema validation experience (Zod, Valibot or similar).
• Experience with streaming or incremental UI (SSE, WebSockets).
• Familiarity with monorepo tooling (pnpm workspaces, Turborepo, Nx).
• Experience with design tokens and multi-tenant theming.
• Embedding JavaScript into third-party sites (iframes, CSP, sandboxing).
• Client state management at scale (Redux, Zustand or similar) against a typed API layer.
• Experience using AI-assisted tooling to enhance productivity.

Benefits

• Salary: Expected range is $135,000 - $175,000 CAD depending on experience.
• Health Benefits: Comprehensive health benefits through our employer of record.
• Unlimited PTO.
• Paid Holidays.
• Wellness Perks.
• Daily Company Break.
• Phone Plan Credit for select team members.
• Company Offsite.