Custom-built high-performance e-commerce for food services

The client needed to modernize their food ordering process by transitioning from phone-based orders to a fully digital platform. However, they faced several critical challenges that prevented them from moving forward independently.

First, integrating GMO Payment Gateway required extensive technical knowledge of Japan’s complex payment ecosystem, including credit cards, convenience store payments, carrier billing, and buy-now-pay-later options. Second, the platform needed to handle high concurrent traffic during peak meal ordering times without performance degradation. Third, they required a system that could scale with their growing customer base while maintaining PCI DSS compliance and data security standards. The existing internal team lacked the specialized expertise to architect and implement such a sophisticated solution within the required timeline.

Before working with Sonix, our phone-based ordering system was creating bottlenecks during lunch and dinner rushes, and we were losing customers to competitors with online platforms. The new e-commerce system has completely transformed our operations. Orders flow smoothly through the system, payment processing is instant and reliable, and our staff can focus on food preparation instead of taking phone calls. The GMO Payment integration was especially critical for us, as Japanese customers expect multiple payment options, and Sonix handled all the complex technical details flawlessly.

What impressed us most was Sonix’s responsiveness throughout the project. When we requested changes or encountered issues during testing, their team addressed them within hours, not days. The quality of their code and attention to detail has resulted in a stable platform that rarely requires intervention. We have expanded our partnership with Sonix for ongoing maintenance and new feature development, and we have no intention of working with anyone else