Architecting Scalable Front-End Systems for High-Traffic Digital Grocery Platforms

High-traffic digital grocery platforms operate under unique technical constraints: extreme traffic spikes during promotions and holidays, highly dynamic product catalogs, real-time pricing and inventory updates, and stringent performance expectations from users who often abandon carts within seconds of perceived latency. Front-end systems sit at the center of this experience, translating complex backend ecosystems into fast, reliable, and intuitive user journeys. This paper presents a comprehensive architectural framework for building scalable, resilient, and business-aligned front-end systems for large-scale digital grocery platforms. Drawing from modern frontend paradigms—headless commerce, micro frontends, component-driven development, performance engineering, and cloud-native delivery—the paper synthesizes academic research and industry practices into a unified reference architecture. Multiple case studies illustrate real-world applications, trade-offs, and measurable outcomes. The paper concludes with future directions, including AI-assisted personalization, edge intelligence, and experience-driven architecture governance.