Mission-critical Modernization for an E-commerce Platform
Client: A leading India-based e-commerce technology provider
Industry: E-commerce Technology, SaaS
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Client
Client
A leading India-based e-commerce technology provider powering real-time integrations across major marketplaces. Its platform served thousands of merchants and sat on the critical path of inventory, order, and transaction flows.
Challenge
Challenge
- A 16-year-old monolithic PHP integration platform was experiencing daily crashes under the weight of 178 marketplace integrations
- Frequent external API changes from partners created cascading failures across the tightly coupled legacy core
- Needed zero-downtime modernization while preserving merchant trust and uninterrupted business continuity
- Rapid stabilization, together with building a foundation for the future
Solution
Solution
- AI-driven analysis of codebases, ticket logs, & docs shaped the architecture for an event-driven hub converting fragmented traffic into AI-readable event streams
- Canonical models & transformation microservices created a unified operational intelligence layer
- Async queues and monitoring hooks prepared the platform for AI-led anomaly detection and predictive response
- AI-first rewrite used a spec-driven model with predominantly AI-generated specifications
- Tech Stack: Azure, MySQL, SNAPTM Speckit, Cursor with Opus and Sonnet
Impact
Impact
- Maintained 100% uptime throughout the migration
- Preserved 178 live integrations with zero disruption to merchant workflows
- Improved platform performance by 300% after modernization
Strategic Significance
Strategic Significance
Showcases Indexnine’s ability to leverage AI to modernize mission-critical legacy platforms into AI-ready systems without disrupting live business operations
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