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Full-Stack JavaScript developer focused on Next.js, TypeScript and AI-powered apps. I build fast, modern, scalable products and help companies automate processes, improve UX, and launch quickly.…

Francisco Massimino

Full Stack Developer, Front-End Developer, Web Developer, +2

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Full-Stack JavaScript developer focused on Next.js, TypeScript and AI-powered apps. I build fast, modern, scalable products and help companies automate processes, improve UX, and launch quickly.…

Available to hire

Full-Stack JavaScript developer focused on Next.js, TypeScript and AI-powered apps. I build fast, modern, scalable products and help companies automate processes, improve UX, and launch quickly.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Full Stack Developer (Front End Focused) at UMA Health AI

February 29, 2024 - February 29, 2024

Led redesign and migration of Argentina and Mexico websites to Next.js; built a new blog platform integrated with Strapi as a headless CMS; improved performance, Core Web Vitals, and publishing workflow; collaborated with Product Manager to define workflows; developed an AI-powered SEO content generator and an AI chatbot for medical research.

Freelance Software & Digital Solutions Developer at Self-employed / Freelance

February 1, 2024 - November 24, 2025

Developed AI-powered SEO content generator; built AI chatbot for medical research; created health SaaS workflows; integrated payments; launched projects including brand migrations and platform optimizations.