John Serrano
Software Engineer at Xuma Insurtech
Perímetro Urbano Cúcuta, Norte de Santander, Colombia
Summary
👤
Senior🎓
Top SchoolJohn 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 ColombiaSENA: Servicio Nacional de Aprendizaje
Spanish, inglés básico
Stackoverflow
19reputation
15kreached
1answer
0questions
Github Skills (47)
javascript10
vercel10
storybook10
static-site-generator10
typescript10
nextjs10
browser10
server-rendering10
react-framework10
ssg10
compiler10
react10
hybrid10
las9
autosuggest8
Programming languages (8)
Github contributions (5)
laopinion/site2016
Jun 2016 - Jul 2017
Contributions:168 pushes, 14 issues in 1 year
johnsi15/GananciasDiarias
Feb 2014 - Nov 2015
Contributions:20 commits, 16 pushes in 1 year 9 months
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