Lei Wei Senio r

Engineered migration of a monolithic Rails application to a service-oriented architecture, extracting payment processing and notifications services handling 50K transactions/day with 99.95% uptime. Implemented AI-augmented development workflow using Cursor with custom rule sets, reducing boilerplate code generation time by 65% while maintaining code quality standards across multiple engineering teams. Built real-time analytics dashboards using Rails 7 Hotwire and PostgreSQL materialized views, processing 2M+ events daily and reducing dashboard load times from ~8s to ~400ms. Architected a hybrid mobile application using Rails JSON API with React Native, serving 500K+ users with offline sync and push notification capabilities. Established AI prompt/document standards company-wide to reduce AI anti-patterns by 80% via validation and code review checkpoints. Led rewrites/migrations of legacy PHP e-commerce to Rails 7 with Hotwire, improving performance (Core Web Vitals). Built AI-assisted

Engineered migration of a monolithic Rails 6 application to a service-oriented architecture, extracting payment processing and notification services handling 50K transactions/day with 99.95% uptime. Implemented AI-augmented development workflow using Cursor with custom rule sets, reducing boilerplate generation time by 65% while maintaining code quality across a multi-engineering team. Developed real-time analytics dashboards using Rails 7 Hotwire and PostgreSQL materialized views, processing 2M+ events daily and reducing dashboard load times from 800ms to 400ms. Architected a hybrid mobile application using Rails JSON API with React Native, supporting 500K+ users with offline synchronization and push notification capabilities. Established company-wide AI prompting standards and validation/code review checkpoints, reducing AI anti-patterns by 80%. Led rewrites of legacy PHP e-commerce platform to Rails 7 with Hotwire, reducing page load times by 3.2s and improving Core Web Vitals score

Engineered migration of a monolithic Rails application to a service-oriented architecture, extracting payment processing and notifications services handling ~50K transactions/day with 99.95% uptime. Implemented AI-augmented development workflow using Cursor with custom rule sets to reduce boilerplate generation time by ~65% while maintaining code quality standards across teams. Developed real-time analytics dashboards using Rails 7 Hotwire and PostgreSQL materialized views, processing 2M+ events daily and reducing dashboard load times from ~800ms to ~400ms. Architected a hybrid mobile app using Rails JSON API with React Native, supporting 500K+ users with offline-first synchronization and push notification capabilities. Established AI-prompting/documentation standards company-wide to reduce anti-patterns in AI-generated code by ~80% through systematic validation and code-review checkpoints. Led modernization of a legacy PHP e-commerce platform to Rails 7 using Hotwire, improving page