CareerPlan

Senior Frontend Engineer, Marketing Website

LondonFull-time2026-11-05 → 2026-11-08
Hybrid

Core

Co-owner of the component library, content model, and rendering stack for synthesia.io, enabling marketers and AI agents to build consistent, accessible, and SEO-optimized marketing pages.

Role type

Senior Frontend Engineer (Marketing Website Platform)

Builds

Astro components, Sanity schemas, design tokens, and the tooling for composing marketing pages

Domain

SaaS Marketing / Content Management Systems

Required skills

Sanity content modeling, Astro, TypeScript, HTML/CSS, SSR/Serverless/Edge runtimes, SEO, Accessibility (WCAG 2.2 AA), Localization/Internationalization, SQL, CI/CD

Preferred skills

Cloudflare Workers, AWS Lambda, Tailwind CSS v4, AI-assisted development, Analytics/Tag management

Technologies

Astro, Sanity, GROQ, Portable Text, Cloudflare Workers, AWS Lambda, Tailwind CSS

Responsibilities

Build and scale the section library and content model; take Figma specs to production; extend the platform for AI-assisted development; own SEO integrity; raise engineering standards; maintain localization; shape technical direction

Seniority

Senior, hands-on IC