Uploaded September 2025 | Updated September 2026, 5 hours ago

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What does it take to adopt React Native at the scale of Zalando?

At React Universe Conf 2025, Rene Eichhorn (Senior Software Engineer at Zalando) shares the technical details and architectural lessons from Zalando’s ongoing React Native migration. The talk highlights both the challenges of brownfield integration and the strategies that make large-scale adoption possible.

Skip the intro ⏩ 0:39

🔹 A non-standard brownfield integration strategy that enables progressive adoption without rewriting half a million lines of native code
🔹 Building a React Native framework package for iOS and Android, enabling seamless interoperability with existing native apps
🔹 Using React Strict DOM as a foundation for future web and mobile unification
🔹 Extending React Native with Zalando’s internal React framework to establish shared patterns across web and mobile
🔹 Balancing cross-platform code sharing with platform-specific differences to preserve native UX
🔹 Lessons learned about experimentation, A/B testing, and scaling React Native to support hundreds of engineers

This deep dive shows how Zalando is bridging the gap between web and mobile, unifying development practices, and bringing React Native to enterprise scale.

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