frontend js/react/typescript for AI video platforms
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Summary
Senior frontend engineer owning and scaling Synthesia's design system (component library, tokens, docs, Storybook) for its AI video platform, including AI-assisted development via MCP. Core stack is React and TypeScript with a strong focus on accessibility (WCAG 2.2 AA), theming, localization/RTL, and developer experience.
Описание:
Synthesia develops an AI video platform for businesses, helping organizations enhance visual communication and enterprise skill development. Its products are used by over 90% of the Fortune 100, and its proprietary generative AI technology is built in-house.
Задачи:
- Build, scale and evolve the design system, including the component library, design tokens and documentation
- Extend the design system for AI-assisted development using Storybook and machine-readable interfaces such as MCP
- Design component APIs that resist misuse by AI and human developers
- Write high-quality, performant frontend code with React and TypeScript
- Partner with design, product and engineering to define components and deliver production-ready solutions
- Make components accessible by default according to WCAG 2.2 AA
- Own the developer experience of the design system, including documentation, guidelines, Storybook, component APIs, versioning and migration paths
- Implement and maintain theming, white labelling and localization/RTL support
- Continuously improve the system based on adoption metrics, contributor feedback and new platform capabilities
- Shape the technical direction of the design system over the next 6–12 months and champion adoption across teams
Требования:
- At least five years of experience as a software engineer, including three years at senior level, building frontend platforms
- Real ownership of a design system or shared component library used across multiple products
- Expert knowledge of HTML, CSS and JavaScript/TypeScript
- Strong React experience and familiarity with modern build tooling
- Strong command of component API design, versioning and the developer experience of shared libraries
- Experience or strong interest in making component libraries consumable by AI
- Solid understanding of responsive design, cross-browser compatibility and web performance
- Experience building components to WCAG 2.2 AA / EN 301 549 and verifying accessibility with a keyboard and screen reader
- Strong sense of craft and attention to detail
- Ability to balance design intent with engineering constraints
- Strong communication and collaboration skills
- Nice to have: strong design sensibility, experience implementing multi-brand theming in production, experience with localization and internationalization including RTL
Условия:
- Relocation support is available
- Remote work is available in London, UK and other locations across Europe, subject to compliance and right to work checks
- EUR/GBP/CHF 120,000 base salary plus stock option plan
- This is full-time employment only, usually through OysterHR; contractors are not possible
- 25 Days of leave plus local holidays
- No extra paid or unpaid leave is possible
- Visa sponsorship is available only for candidates already in the UK or an EU country who need support
