How JSN Cloud transformed a legacy monolithic e-commerce platform into a scalable cloud-native microservices architecture, achieving 300% performance improvement and 60% cost reduction while handling Black Friday traffic spikes.
As one of the world's largest e-commerce platforms, the client faced increasing challenges with their legacy monolithic architecture that was struggling to handle exponential growth in traffic, especially during peak shopping events like Black Friday and Cyber Monday.
The client's legacy monolithic e-commerce platform, built over 15 years, was becoming a significant barrier to growth and innovation. The system struggled with peak traffic loads, took months to deploy new features, and was increasingly expensive to maintain and scale.
With Black Friday traffic reaching 1M+ concurrent users and generating $500M+ in daily revenue during peak periods, even minor outages resulted in millions of dollars in lost revenue and damaged customer trust.
Monolithic architecture couldn't handle traffic spikes effectively, leading to frequent outages during peak shopping events, cart abandonment, and revenue loss exceeding $2M per hour of downtime.
Single codebase created deployment conflicts, requiring 6-month release cycles, preventing rapid feature development and limiting competitive response to market changes and customer demands.
Over-provisioned infrastructure to handle peak loads resulted in 70% resource waste during normal periods, with annual infrastructure costs exceeding $200M without proportional business value.
Slow page load times (5+ seconds), frequent checkout failures, and poor mobile performance led to 40% cart abandonment rates and declining customer satisfaction scores across all markets.
Legacy codebase required 60% of engineering resources for maintenance, limiting innovation capacity and making it increasingly difficult to attract top engineering talent to work on outdated technology stacks.
JSN Cloud designed and executed a comprehensive cloud-native transformation strategy, decomposing the monolithic platform into scalable microservices while maintaining zero downtime during the transition. Our approach balanced aggressive modernization goals with business continuity requirements.
Gradual replacement of monolithic components with microservices while maintaining business continuity and allowing for iterative testing and validation.
Complex data migration strategy ensuring consistency across multiple databases while maintaining real-time synchronization during the transition period.
| Data Domain | Source | Target | Strategy | Validation |
|---|---|---|---|---|
| User Data | Oracle DB | PostgreSQL + Redis | Change Data Capture (CDC) | Automated consistency checks |
| Product Catalog | SQL Server | Elasticsearch + MongoDB | Batch + streaming sync | Search relevance testing |
| Inventory | MySQL | Cassandra + Kafka | Event sourcing | Real-time reconciliation |
| Orders | Oracle DB | PostgreSQL + Event Store | Dual write + eventual consistency | Order state validation |
| Analytics | Data Warehouse | Data Lake + Spark | ETL pipeline migration | Report comparison testing |
The ultimate test of the cloud-native transformation came during Black Friday 2024, where the platform successfully handled record-breaking traffic while maintaining optimal performance and zero downtime.
"JSN Cloud delivered the impossible - a complete platform transformation without a single minute of downtime. Our Black Friday performance was flawless, and we're now positioned for the next decade of growth."
Ready to achieve similar results? Learn how JSN Cloud can modernize your e-commerce platform for scale, performance, and cost efficiency.