Wilbert Pangilinan

Led architecture and interface design for a scalable stock trading application using Angular 13+, NgRx, and SCSS for 5,000 concurrent users. Built responsive dashboards with Angular Flex Layout and Sass MQ, performed AB testing on layouts, and contributed to a 10% reduction in bounce rate. Delivered trading features in fast-paced Agile sprints, supporting a revenue increase of $50K within three months. Mentored junior developers on component reuse, layout logic, and best practices, enforcing code reviews and achieving a 15% reduction in defects. Established state persistence using NgRx Effects and Entity, improving workflow reliability by 20%. Upgraded Angular framework from v13 to v14, resolving 100+ dependency issues and improving maintainability. Integrated socket.io client for real-time data streams, reducing data latency by 15%. Optimized DevOps with Dockerized environments and source-map tuning, increasing deployment frequency by 30%. Implemented Cypress and Jest test automation

Architected and implemented a modular front-end foundation using React 19, TypeScript 5.x, and Vite, enabling code-splitting, lazy loading, and prefetch strategies to improve first-page load times by 20% for 10,000+ monthly visitors across platforms. Designed and automated PDF data extraction pipelines with LangChain, pdf-lib, and OpenAI models, building custom parsers for complex documents; achieved 95%+ field-level accuracy and reduced manual data entry time by 50%. Devised and deployed AI-driven reconciliation workflows with LangChain, Claude, and rule-based logic to match transactional data, cutting manual accounting workload by 40% (~15 hours/week) while improving error detection. Implemented collaborative documentation editing (TipTap Pro), WebSocket synchronization, and conflict resolution to support simultaneous multi-user edits, boosting doc collaboration by 30% and team productivity by 25%. Visualized large-scale financial data (1M+ rows) using Recharts and TanStack Table wit

Led the frontend architecture and development of a real-time trading platform serving 50,000+ concurrent users; delivered low-latency, scalable, and SEO-optimized performance. Architected Angular 13–14 + NgRx applications, improving UI stability by 20% and reducing support tickets by 25%. Built real-time trading dashboards with WebSockets and Socket.IO, reducing latency by 15% and enhancing trader responsiveness. Migrated Angular 13 → 14, resolving 100+ dependency issues and boosting release velocity by 30%. Automated E2E testing with Cypress + Jest, reducing regressions by 20%. Mentored 5 engineers and defined code-review and architecture standards that cut PR cycle time by 25% and improved onboarding efficiency by 30%.