Senior Frontend Product Engineer, Conversions (all genders)

Work with HelloFresh in Warsaw and its Hello

• Tech organisation, HelloFresh’s global technology backbone with more than 1000 people, building the digital products that power our end-to-end food experience. From meal kits and ready-to-eat meals to specialty offerings like pet food and premium meat & seafood, Hello
• Tech creates the platforms that bring tailored food solutions to millions of customers every month. Our subscription-based, direct-to-consumer model relies on technology at every step, from customer-facing apps and personalization logic to pricing, forecasting, supply chain optimization, and initiatives that help reduce food waste. While our brands operate independently to serve distinct customer needs, they are united by shared platforms, data, and operational excellence built by Hello
• Tech.

About the role: What's in the Box

Conversions Tech empowers HelloFresh Group meal brands to achieve ambitious growth targets through a seamless and high-performing conversion funnel. As part of the Growth Alliance, you will drive marketing innovation by delivering advanced MarTech capabilities, conversion optimization, and data-driven growth strategies. You will build personalized web experiences using React, Next.js, and edge environments, tailoring user journeys based on intent, channel, and campaign data. In this role, you will integrate with our CMS, leverage experimentation frameworks, and utilize GenAI tools, such as Claude, Cursor, Figma, and Contentful MCPs, to accelerate architecture, design, and testing workflows. Working alongside machine learning, product, and design experts, you will ensure high-performance execution, maintaining strong Core Web Vitals and low-latency delivery across global desktop and mobile applications.

What we offer: The Toppings

• Global collaboration at scale: Collaborate with experienced engineers and product partners across Hello
• Tech’s international teams, in a culture of active knowledge sharing.
• Technology with real-world impact: Build and operate modern systems at global scale, supporting 6+ millions of customers and complex supply chain operations.
• Technical/Product/Design leadership: Drive best practices and influence architecture/design, quality, and ways of working in an autonomous, product-led setup.
• End-to-end development/delivery: Drive decisions from problem definition to production, improving systems and enabling long-term scalability.
• Access to workspace at Warsaw centre (Prosta 20). The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit).