Senior Frontend Developer

Owned frontend platform architecture using React, TypeScript, and modern build tooling for strategic SaaS product modules. Designed and maintained scalable component architecture, state machines, and design system governance. Implemented testing strategies with Jest and React Testing Library. Built full-stack solutions integrating frontend with RESTful APIs. Drove accessibility best practices, semantic HTML5, and mobile-first responsive design. Optimized web performance and Core Web Vitals. Mentored engineers and partnered with product and design teams.

Led modernization from legacy AngularJS to React and Next.js, including App Router and Server Components adoption. Implemented WCAG 2.2 AA accessibility standards and Spanish localization. Designed and maintained monorepo architecture. Governed design system patterns, tokens, and consistency standards. Built responsive experiences using Tailwind CSS and SCSS. Improved frontend quality through automated testing and performance optimization.

Delivered ADA/WCAG-compliant frontend components for enterprise banking platforms. Built accessible, semantic HTML5 experiences with cross-browser compatibility and responsive design. Collaborated with distributed engineering teams and migrated legacy experiences to modern frontend architectures.

Led a 35-member technology organization delivering national-scale government digital services and IT modernization. Rebuilt institutional web applications using mobile-first responsive design principles. Oversaw systems processing 2.2M+ payments and serving 120,000+ citizens. 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.