Case Study: CHAGEE launches a real-time US store tech stack with Happy Cog

CHAGEE launches its US tech stack in 90 days with Happy Cog

Chagee, a global tea brand with over 6,000 stores in Asia, faced the challenge of launching its entire US technology stack from scratch in just 90 days for its first Los Angeles location. They needed a partner to integrate their proprietary ordering platform, Square POS, automated tea machines, label printers, and financial systems into a cohesive, real-time operational backbone. Happy Cog was hired to build this critical integration with a non-negotiable opening date.

Happy Cog engineered a central integration layer powered by a Firebase Realtime Database event pipeline. This solution synchronized all systems in real time, driving customer-facing pickup screens and automated thermal label printing with dynamic QR codes and nutrition facts. The entire serverless platform was delivered on schedule, enabling Chagee's successful US launch and ensuring the high-velocity store could operate efficiently from day one.

Chagee