Architected and implemented high-performance checkout flow optimization for eCommerce platform, reducing cart abandonment by 22% and increasing conversion rate by 15% through streamlined payment processing, real-time inventory validation, and intelligent error handling.

Designed and developed scalable payment processing microservice handling 500K+ transactions daily with 99.99% uptime, integrating multiple payment gateways (Stripe, PayPal, Braintree) and implementing idempotency patterns to prevent duplicate charges.

Built real-time pricing engine with dynamic rule evaluation supporting complex discount strategies, A/B testing, and regional pricing, processing 2M+ price calculations per minute and reducing pricing errors by 95%.

Architected frontend optimization strategy reducing micro-frontend bundle size by 77% (110KB→25KB) through tree-shaking and code splitting, improving page load performance by 40% and enhancing commerce workflow UX.

Engineered zero-downtime migration of 75,000+ subscriptions to new transaction architecture, reducing processing time by 83% (72hrs→4hrs) via intelligent parallelization and robust data validation, ensuring 100% data integrity.

Designed comprehensive observability framework with Dynatrace, establishing real-time monitoring and intelligent alerting that reduced MTTR by 60% within three months, significantly improving system reliability.

Instituted 80%+ test coverage standard across micro-frontends through automated testing frameworks, reducing production bugs by 50% and accelerating development velocity via early regression detection in CI/CD.

Reduced application infrastructure costs by 25% by implementing Kubernetes Horizontal Pod Autoscaling (HPA) tuned to custom metrics, eliminating over-provisioning while maintaining optimal performance.

Improved application performance by 18% through UI rendering optimization, code refactoring, and SQL query tuning, increasing concurrent user capacity by 30% without additional infrastructure costs.

Built monitoring platform (Spring Boot, Kafka, Oracle) to track SLOs/SLIs and produce application health scores used by leadership for strategic decision-making, reducing manual reporting overhead by 70%.

Automated 10% of manual disaster recovery procedures with Ansible, increasing operational consistency and reducing recovery time.

Application development utilizing HTML5, CSS3, and JavaScript leveraging the Bootstrap framework in Front End and a J2EE / MySQL in the backend.

Refine and iterate user experience by designing and implementing new modules and interfaces in a complex, responsive site.

Orchestrated the design and development of web pages in the web application TEAM incorporating the changes requested by the clients, provided solutions that are convergent in space and time.