Jhon Henao's Work | ContraWork by Jhon Henao
Jhon Henao

Jhon Henao

Full Stack AI Integrator | React • Tailwind • Python

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Jhon is ready for their next project!

Followed by Deniz U, Nicolas P, and Ciro

Cali, Colombia

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Cali, Colombia

Redesigning my web portfolio (https://estiguar.vercel.app) to optimize user retention. 👨‍💻 I just wrapped up a complete restructuring of my personal web portfolio using React, Tailwind, and Vite. The goal wasn’t just a visual facelift, but solving real-world optimization and UX challenges that often get overlooked. Here is a breakdown of what I prioritized during this sprint: * Mobile performance & interactivity: I optimized the tsParticles integration by capping the frame rate at 120 FPS for high-refresh-rate displays and eliminated abrupt edge-bounce calculations. The result? Lower battery consumption and smoother, more natural transitions. * Immersive UI/UX: I implemented a subtle, dynamic spotlight effect that follows the cursor, layered over an ultra-faint technical grid on a dark background. The focus was finding the perfect balance between modern aesthetics and readability. * Modular architecture: I refactored the projects section using asymmetrical layouts and optimized modals. These components break down the engineering behind each build—ranging from AI integrations with Llama 3 to IoT telemetry via MQTT. Check out the video to see the full walkthrough and how the micro-interactions respond in real time. If you are looking for a developer who combines clean code with a strict focus on product performance, let’s connect. I am available for new high-impact freelance projects.
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Rediseñando mi portafolio web para optimizar la retención de usuarios. 👨‍💻 Acabo de terminar la reestructuración completa de mi portafolio web (https://estiguar.vercel.app) personal utilizando React, Tailwind y Vite. El objetivo no era solo actualizar el diseño visual, sino resolver problemas reales de optimización y experiencia de usuario que suelen pasarse por alto. Aquí un resumen de lo que prioricé en este sprint: * Rendimiento e interactividad móvil: Optimicé la integración de tsParticles limitando los FPS a 120 para pantallas de alta tasa de refresco y eliminé cálculos bruscos de rebote en los bordes. Menos consumo de batería, transiciones más naturales. * UI/UX inmersiva: Implementé un efecto dinámico de spotlight sutil que sigue al cursor y una cuadrícula técnica ultra-tenue sobre un fondo oscuro, buscando un balance entre estética moderna y legibilidad. * Arquitectura modular: Refactoricé la sección de proyectos con layouts asimétricos y modales optimizados que explican detalladamente la arquitectura de cada desarrollo (como integraciones de IA con Llama 3 o telemetría IoT mediante MQTT). En el video puedes ver el recorrido completo y cómo responden las micro-interacciones en tiempo real. Si estás buscando un desarrollador que combine código limpio con un enfoque estricto en el rendimiento de producto, hablemos. Estoy disponible para nuevos proyectos de alto impacto.
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Cover image for I recently made several improvements
I recently made several improvements to the design of my developer portfolio (https://estiguar-vercel-app.translate.goog/?_x_tr_sl=es&_x_tr_tl=en&_x_tr_hl=es&_x_tr_pto=nui). The main goal was to simplify navigation, improve user experience, and reduce loading times. By optimizing resources and responsive design, I managed to make the site look and function more smoothly on all types of devices. In addition, I adjusted the content and structure to focus on what really matters: highlighting my skills in Full-Stack, AI, and automation. I also did a complete review of SEO tags, such as meta descriptions, titles, and the use of relevant keywords to improve organic positioning. The result is a clearer, faster, and more optimized portfolio that better reflects what I do and how I can help solve real problems.
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Cover image for Many auto repair shops still
Many auto repair shops still manage repairs via WhatsApp, physical notes, and constant calls asking, “Is it ready yet?” I decided to build Fixly (https://fixly.pythonanywhere.com), a SaaS platform for organizing repairs, estimates with photos, and automatic notifications from a single dashboard. The idea was not just to digitize, but to design a simple system that truly reduces operational friction. I developed it as an indie dev: rapid validation, multi-tenant SaaS architecture from the start, and a freemium model to facilitate adoption.
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