Senior Mobile Engineer (React Native), Shopping AI & Search

At HelloFresh, our mission is simple: to change the way people eat, forever. As a global digital-native FMCG company and the world's leading mealkit provider, we are transforming the traditional food supply chain through a data-driven, on-demand model that enables scalable and more sustainable food delivery. The HelloFresh Group includes eight brands serving customers across multiple meal occasions, including HelloFresh, Green Chef, EveryPlate, and Chefs Plate, as well as ready-to-eat meals from Factor and YouFoodz, meat and seafood subscriptions through Good Chop, and pet nutrition with The Pets Table. Through technology, data, and culinary innovation, we deliver personalized food experiences to millions of households worldwide.

About the Role: What’s in the Box

Join the Shopping AI & Search squad in our Warsaw office, part of the Shopping Journey tribe. You’ll build AI Assistant experiences on iOS and Android, including conversational search, personalized recommendations, and in-app assistant features, to help customers find and order what they love.

What You’ll Do: The Recipe

• Build and evolve a high-scale React Native app that serves AI-powered shopping experiences across our brands.
• Integrate LLM-powered features on the device, designing for latency, cost, non-determinism, and graceful degradation.
• Own features end to end, from RFC to rollout, using feature flags, analytics, and A/B tests.
• Work with GraphQL (Apollo Federation) APIs and own app reliability and performance.
• Help shape mobile architecture across the tribe and lead medium-to-large technical initiatives.

What You’ll Bring: The Ingredients

• Strong React and TypeScript experience, ideally with React Native. Experienced React web engineers are welcome to apply.
• Daily hands-on use of AI-assisted coding tools (such as Claude Code, Cursor, or Copilot) and interest in production GenAI features.
• A track record of shipping consumer apps at scale, with solid knowledge of state management, navigation, and performance.
• Ownership of code quality, including unit, integration, and E2E testing, code review, and pre-release checks.
• Strong collaboration skills across backend, AI, product, and design teams.

Nice to Have

• LLM integration in production, native iOS (Swift) or Android (Kotlin) experience, multi-market feature flags, A/B testing tools, and search or recommendation systems.

What we offer: The Toppings

• Global collaboration at scale: Collaborate with experienced engineers and product partners across HelloTech’s international teams, in a culture of active knowledge sharing.
• Technology with real-world impact: Build and operate modern systems at a global scale, supporting 6+ million 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 the workspace at Warsaw Centre Point. The hub offers modern facilities including showers, breakout zones, outdoor space, cycle parking, and refreshments (coffee, soft drinks, and fruit).

Are you the missing ingredient? If you don’t tick every box but think you’d thrive here, we’d still like to hear from you. We aim to review your profile and respond within 5 business days.