Webflow Developer / Front-End Engineer London

About the Role

This role sits within our Marketing Website team, responsible for how Synthesia shows up to millions of users globally.

As a Webflow Developer / Front-End Engineer, you’ll work across Webflow, front-end code, and supporting tooling. You’ll collaborate closely with Design, SEO, Growth, and Engineering, and you’ll have real ownership over what ships to production.

Your mission is simple: build fast, reliable, and high-performing experiences on our marketing site, and help maintain the systems that support SEO, experimentation, and growth.

What you’ll be working on

• Building and maintaining pages and components in Webflow (CMS, localization, integrations)
• Implementing custom front-end functionality (JavaScript, animations, interactive widgets, forms, experiments)
• Supporting and extending internal SEO and automation tools (currently running on AWS)
• Working with Lambda functions, APIs, and simple backend services where needed
• Improving performance, accessibility, and technical SEO
• Collaborating closely with Design, SEO, Growth, and Engineering
• Shipping fast, iterating often, and keeping quality high

Skills and requirements

Must-have skills/experience

• Strong experience working with Webflow in a production environment
• Solid fundamentals in HTML, CSS, and JavaScript
• Comfortable working outside Webflow when needed (custom JS, embeds, APIs)
• Experience with technical SEO concepts (page speed, structured data, indexing basics)

Some extra skills that would be awesome

• Experience with AWS (Lambda, basic infrastructure, scripts, cron jobs)
• Familiarity with Node.js or similar backend runtimes
• Experience building or maintaining SEO tooling, scrapers, generators, or automation
Knowledge of analytics and tracking setups (GA4, GTM, events)
• Experience working in a product-led or growth-focused environment

How we work

• Small team, high ownership, and meaningful impact
• Webflow is our main platform — but we regularly extend it with custom code and build custom tooling
• We care deeply about performance, maintainability, and clean implementations
• You’ll have real influence over technical decisions, tooling, and how things are built

This role is not for you if

• You only want to design in Webflow Designer and avoid code
• You’re uncomfortable touching JavaScript or backend logic
• You prefer rigid specs over solving open-ended problems

Why this role is unique

• Production traffic at real scale
• A role that spans Webflow, front-end engineering, and backend tooling
• Ownership over both UI and the systems behind it
• Room to grow inside one of the fastest-growing AI companies

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