Frontend Webflow Engineer

Ebury helps ambitious businesses unlock global growth, and we take the same approach with our people. We encourage innovation and movement, collaboration and problem-solving, and foster an environment where everyone can feel they belong, are valued, supported and empowered to succeed. If you’re a collaborator who wants to help transform how businesses operate globally, get in touch - we’d love to discuss how Ebury can accelerate your career so you can shape the future. London Office - Hybrid: 4 days in the office, 1 day working from home The Challenge At Ebury, we don’t just build marketing sites; we build experimentation engines . We’ve launched a sophisticated Webflow instance that serves as the global front door to our fintech platform. Your mission is to use Webflow Optimize and custom code to run hundreds of simultaneous AI-driven experiments and ML-powered personalizations without breaking the user experience. The Role You will sit at the intersection of growth engineering and AI optimization. Scale Infrastructure: Build and manage concurrent A/B tests and personalization campaigns using Webflow Optimize. Bridge the Gap: Extend Webflow with JavaScript, APIs, and custom integrations to connect our marketing site with our core product and analytics stack. Own Conversion: Work cross-functionally with Product, Marketing, and Data teams to design, instrument, and analyze growth experiments. Build Systems: Create reusable components and design systems that enable the marketing team to launch campaigns at pace while maintaining brand consistency. What We’re Looking For Must-Have Qualifications Experience: 3–5 years of web development experience with a mastery of frontend fundamentals (JavaScript/TypeScript, HTML, CSS). Webflow Expertise: You have built production-grade sites in Webflow and know how to extend the platform using custom code, APIs, and complex integrations. Fullstack Fundamentals: Comfortable managing APIs, authentication, and data flows to connect frontend experiences with backend systems. Data-Driven Mindset: You instrument tracking and analyze results to make technical decisions based on data rather than opinions. Bonus Points (We Will Teach You) Growth Mindset: Experience on a growth team, running A/B tests, or being responsible for conversion metrics. You understand that "good code" is code that moves business KPIs. Experimentation Tools: Experience with Webflow Optimize or similar platforms (Optimizely, VWO, etc.). Specialized Background: Experience in Growth Engineering, Conversion Rate Optimization (CRO), MarTech, B2B SaaS, or Fintech. AI/ML: An understanding of ML/AI-powered personalization. What Matters Most We need someone who thinks like a Product Engineer but loves the fast pace of Growth . You will thrive here if you: Ship Fast: You get energized by deploying experiments quickly and seeing immediate impact on conversion metrics. Collaborate: You enjoy working cross-functionally with Marketing, Product, and Data teams. Balance Speed & Quality: You know when to "hack" for a quick test and when to build for long-term scale. Seek the "Why": You want to understand the business goals behind a project, not just close out tickets. Stay Adaptable: You have "strong opinions, loosely held"—advocating for technical quality but pivoting based on data. You Won’t Thrive Here If... You prefer focusing on backend infrastructure over frontend-heavy roles. You dislike ambiguity and require perfectly defined requirements for every task. You only want to work with other engineers; this role is embedded in Marketing and Product. You view Webflow as "not real coding" rather than a powerful platform to be extended with custom code. #LI-JB1 About us Ebury delivers sophisticated, integrated solutions — business accounts, hedging, and financing — on a single platform with a seamless workflow. Our success is built on a simple premise and singular purpose: To help businesses operate and scale globally. Since its founding in 2009