Frontend Developer at Genese Solutions

Led performance optimization across a multi-tenant SaaS platform, achieving a 30% improvement in Core Web Vitals through code-splitting, lazy loading, and bundle optimization. Implemented an automated drag-and-drop template builder using GrapesJS to accelerate email campaigns, enabling campaigns exceeding 1M+ emails. Established a rigorous CI/CD workflow with Vitest and React Testing Library to reduce production bug escapes by 25% and mentored juniors through code reviews and pair programming. Delivered high-availability frontend infrastructure by deploying assets to AWS S3 and CloudFront for optimized global content delivery. Built real-time analytics dashboards in React/TypeScript to monitor delivery, open, and engagement metrics, with reusable component patterns that improved maintainability.

Frontend Developer at Varosa Technology

Improved data-fetching efficiency by integrating GraphQL (Apollo) and REST APIs with asynchronous approaches for a VoIP system and e-commerce. Ensured cross-browser and mobile-responsive UIs across 4+ production apps, enhanced accessibility per WCAG. Built a reusable component library in React/TypeScript with CSS-in-JS to reduce UI duplication by 40%. Implemented a real-time VoIP web application using WebSockets, Twilio, and WebRTC for browser-based calling and conferencing. Contributed to CI/CD practices with Git branching strategies and peer reviews, and enhanced performance through lazy loading, memoization, and SSR/SSG in Next.js.