Accelerating Customer Experience-Driven Retail DX with AWS and Classmethod Korea

Date Published:22 DECEMBER 2025

- Difficulty in optimizing costs and improving operational efficiency during the early stages of AWS adoption
- Need to manage significant traffic spikes reliably without compromising cost-effectiveness

- Reduced AWS costs and optimized architecture through the technical consulting provided by Classmethod Korea
- Stabilized service operations through rapid technical support and efficient incident management
- Positioned the company to expand into big data analytics and AI/ML initiatives
MUJI Korea, the South Korean subsidiary of the global lifestyle brand MUJI, operates its domestic online shopping mall and membership services (offering a diverse range of products including apparel, household goods, furniture, and food) within an AWS environment. Through its partnership with Classmethod Korea, the company has established a stable cloud infrastructure and achieved cost optimization, successfully enhancing its ability to handle traffic surges while improving overall operational efficiency.
Leveraging AWS for Scalability and International Security Standards Compliance

MUJI Korea operates its South Korean online shopping mall and membership services on an AWS-based infrastructure. Web platforms, mobile apps, customer data management, and order and payment processing systems are delivered with high stability, with a core focus on handling large-scale traffic and strengthening security.
Given the South Korean market’s demand for fast and reliable online services, AWS was the ideal fit for our requirements. The platform provides elastic scalability and meets international security standards necessary for both rapid deployment and long-term operational stability.
Key AWS Services Deployed:
- Amazon EC2: Powers core application servers for online stores and internal management systems
- Amazon S3: Serves as the repository for product images, marketing materials, and log data, providing secure storage and rapid data retrieval
- Amazon RDS: Utilizes MySQL-based RDS to manage order, payment, and customer data with high availability
However, in the early stages of adoption, there were many concerns regarding cost optimization and operational efficiency. In particular, maintaining cost efficiency while preventing resource overload during traffic surges was a major challenge.
A Strategic Partnership with Classmethod Korea
MUJI Korea discovered Classmethod Korea through AWS-related seminars and recommendations, choosing to collaborate based on its proven technical support capabilities and extensive experience in cost optimization.
Classmethod Korea proposed cost reduction and architecture optimization plans that helped improve actual operational cost efficiency, while their rapid response and technical support during incidents enabled stable service operations.
Future Vision: Data-Driven Growth
Looking ahead, MUJI Korea plans to further bridge the gap between its online and offline experiences through data-driven personalization and new digital channels.
With a stable cloud foundation now in place, the company is preparing to integrate AWS data analytics and AI/ML capabilities to power advanced recommendation systems while also positioning itself for global expansion.
Classmethod Korea’s technical support and cost-optimization consulting provide significant value to companies leveraging AWS. Continued engagement will support stable and efficient cloud operations.