Led 35-member technology organization delivering national-scale government digital services and IT modernization. Rebuilt institutional web applications using mobile-first, responsive design principles — increasing traffic by 30%. Oversaw systems processing 2.2M+ payments and serving 120,000+ citizens through digital platforms. Modernized infrastructure, networks, and platforms while maintaining zero security breaches over 5 years. Led cross-functional execution across engineering, operations, stakeholders, and citizen-facing services.

Own frontend platform architecture using React, TypeScript, and modern build tooling (Webpack, Vite) for strategic SaaS product modules serving 3,000+ companies including Fortune 500 clients. Design and maintain scalable component architecture, state machines (XState), and design system governance — improving UI consistency, accessibility, and development velocity across teams. Implement comprehensive testing strategies using Jest and React Testing Library, maintaining high code coverage and engineering quality standards. Build full-stack solutions integrating frontend with RESTful APIs, working across Ruby on Rails backend and React frontend. Drive accessibility best practices (WCAG AA), semantic HTML5, and mobile-first responsive design patterns across all implementations. Optimize web performance and Core Web Vitals through code splitting, lazy loading, and modern optimization techniques. Collaborate with Git workflows including branching strategies, pull requests, and code review discipline. Mentor engineers in frontend architecture, testing patterns, accessibility, and maintainable implementation practices. Partner with product and design teams to translate requirements into pragmatic technical solutions and delivery plans.

Led modernization from legacy AngularJS to React and Next.js architecture, including App Router and Server Components adoption. Implemented WCAG 2.2 AA accessibility standards and Spanish localization across critical healthcare platform workflows serving 600,000+ users. Designed and maintained monorepo architecture using modern tooling to centralize shared components and improve maintainability. Governed design system by defining reusable patterns, design tokens, and consistency standards across teams. Built responsive, mobile-first experiences using modern CSS patterns including Tailwind CSS and SCSS. Improved frontend quality through automated testing, accessibility-focused implementation, and performance optimization.

Delivered ADA/WCAG-compliant frontend components for enterprise banking platforms serving 50M+ users. Built accessible, semantic HTML5 experiences with cross-browser compatibility and responsive design. Collaborated with distributed engineering teams using Git workflows and modern development practices. Migrated legacy experiences to modern frontend architectures while maintaining production stability.