Mazen Guezzi

• Led frontend architecture for complex e-commerce and SaaS platforms. • Boosted application speed by 40–60% via lazy loading, caching, and image optimization. • Delivered SSR apps with 99+ Lighthouse scores, significantly improving SEO. • Mentored junior developers, led workshops, and enforced best coding practices. • Reduced production bugs by 35% through thorough code reviews. • Integrated Redux, RTK Query, and React Query for scalable state management. • Built real-time features with WebSockets and implemented multilingual support. • Maintained direct client communication, aligning technical and business needs.

• Scaled traffic to 1.4M+ monthly visits on a leading Tunisian e-learning platform. • Built responsive landing pages with Next.js, achieving 99+ SEO scores. • Reduced load times by 40% and increased engagement by 25% via UX optimizations. • Integrated REST APIs and managed frontend state using Redux. • Collaborated with backend teams for seamless full-stack integration. • Defined coding standards to ensure consistent, maintainable code across the frontend.