Scaling Micro-Frontends Without Coupling - AWS Strategies

Learn how to scale micro-frontend architecture across hundreds of engineering teams while achieving true independent deployment in this 25-minute conference talk from React Advanced London 2025. Discover architectural strategies derived from real-world experience with over 100 AWS engineering teams, focusing on solving the primary pain points that plague micro-frontend implementations. Explore the fundamental trade-off between code reusability and team independence, understanding why optimizing for team autonomy leads to better scalability outcomes. Master coarse-grained splitting techniques that reduce cognitive load and learn when to split or aggregate micro-frontends based on proven granularity heuristics. Build stable, technology-agnostic application shells that can evolve independently while maintaining system coherence. Implement dynamic discovery schemas using JSON instead of hardcoded webpack configurations to enable flexible routing and deployment strategies. Move discovery logic to the edge for low-latency performance and implement canary releases with instant rollback capabilities on CDN infrastructure. Understand why shared global state creates dangerous coupling and discover better data sharing patterns using Backend for Frontend (BFF) and Event Emitters. Implement automated governance through Architectural Fitness Functions to maintain system quality as teams scale. Transform your approach from a traditional "build" mindset to one that embraces software growth and evolution, enabling your organization to achieve the fast flow necessary for modern distributed frontend development.