Senior Frontend Engineer, Conversions (f/m/x)

S'more about the team Conversions Tech empowers our meal brands to achieve ambitious growth targets through a seamless and high-performing conversion funnel. As a part of the Growth Alliance, we drive the next chapter of growth for HelloFresh group by powering marketing with advanced MarTech capabilities and product innovation. We focus on (re) acquisition, conversion optimization, and data-driven growth strategies. As a Frontend Engineer in Conversions, you will build personalized web experiences that help users find the right path through our funnels. You will focus on tailoring our user journeys based on user intent, channel and campaign data, using React, Next.js and edge environments. You will integrate with our CMS, work with experimentation frameworks, and use AI powered tools like Cursor, Figma and Contentful MCPs to speed up design, development and testing workflows. You will collaborate with machine learning, product and design teams to deliver fast, relevant experiences. You will also play a key role in performance, keeping Core Web Vitals strong and ensuring our personalization layer remains reliable and fast across mobile and desktop. Above all, we want people who make the team stronger. Even if you do not meet every requirement, we would still like to hear from you. Lettuce share what this role will be responsible for Build and maintain personalized landing pages and funnel steps using React, TypeScript and Next.js Work across frontend and infra tasks, including Cloudflare Workers, cache rules and Vercel Edge functions Integrate dynamic content and variations coming from our CMS Implement and validate A/B tests with Statsig, ensuring clean tracking and test integrity Ensure strong performance on mobile and desktop, focusing on Core Web Vitals and low latency personalization Implement and monitor frontend performance and error tracing using tools like Sentry and Honeycomb Work with SSR and modern rendering patterns in Next.js to balance performance, cac