Summary
John Serrano is a software engineer from Colombia with over a decade of experience and 7+ years focused on building performant, scalable web interfaces and full-stack solutions using JavaScript/TypeScript, Node.js, React, Next.js, Docker, TailwindCSS, Firebase and MongoDB. He applies modern AI tooling—integrating LLMs into web apps via the Vercel AI SDK—to enhance user experiences and product capabilities. His work ranges from public-facing sites and e-commerce/payment integrations to internal admin panels and CMS-driven publishing platforms, having led redesigns and payments integrations for media and insurtech clients. A passionate frontend advocate and educator, he reaches 1,000+ monthly readers through his blog and produces multi-platform educational content and a weekly newsletter to help other developers level up. Colleague-friendly and product-oriented, he combines hands-on implementation with architecting for performance, accessibility and scalability. Outside client work he freelances and maintains an active portfolio and GitHub, signaling a steady flow of practical projects and community-facing resources.
12 years of coding experience
5 years of employment as a software developer
Ingeniería, Ingeniería informática, 4.2, Ingeniería, Ingeniería informática, 4.2 at Universidad Santo Tomás Colombia
SENA: Servicio Nacional de Aprendizaje
Spanish, inglés básico