Case Study
API Performance Optimization
E-commerce Platform
REST API response times degraded from 200ms to 2+ seconds under load, causing checkout failures and customer abandonment.
Node.js PostgreSQL Redis AWS ELB DataDog k6
Discuss Similar Project Challenge
REST API response times degraded from 200ms to 2+ seconds under load, causing checkout failures and customer abandonment.
Constraints
- Cannot change existing API contracts
- Database schema locked due to third-party integrations
- 24/7 uptime requirement
- Limited maintenance windows
Approach
Conducted comprehensive performance audit, implemented multi-layer caching strategy, optimized database queries, and added horizontal scaling capabilities without breaking existing contracts.
Deliverables
- Performance audit report
- Multi-layer caching implementation
- Database query optimization
- Load balancing setup
- Monitoring dashboard
- Performance testing suite
Tech Stack
Node.js PostgreSQL Redis AWS ELB DataDog k6
Timeline: 6 weeks
Key Results
85% improvement in API response times
60% reduction in database load
99.9% uptime maintained
50% cost reduction in infrastructure
Improved customer experience
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