Omar
Hernández Rey
Full Stack Web Developer
Freelance Full Stack Developer with 5+ years of experience building web solutions for businesses in Colombia and remote clients in the US. Specialized in React, Next.js, Node.js, and AI. Software Engineering student at Politécnico Grancolombiano.
- Experience
- 5+ years
- Education
- Software Eng. (2026)
- Zone
- CO · Remote US
Professional
Experience
Freelance Web Developer
Since 2020, I've been building custom web solutions for entrepreneurs and businesses. My core stack includes React, Next.js, TypeScript, and Node.js, with PostgreSQL and Supabase databases. I've built e-commerce stores, landing pages, progressive web apps, and complex systems integrations.
Projects for Remote US Clients
I've collaborated with international clients building scalable full stack solutions. Experienced in effective remote communication, Git version control, technical documentation in English, and delivering projects on agreed timelines. Familiar with agile methodologies and async workflows.
Education
Software Engineering
Politécnico Grancolombiano
2023 - 2026
About to graduate as a Software Engineer from Politécnico Grancolombiano, where I built solid skills in software development, systems architecture, and agile methodologies.
ADSI Technologist (SENA)
Servicio Nacional de Aprendizaje (SENA)
Completed November 29, 2022
Completed the comprehensive professional training program in Information Systems Analysis and Development, building skills in analysis, design, development, implementation, and maintenance of software systems.
View certificateFull Stack Web Development Bootcamp
Talento Tech Bogotá - Ministerio TIC
159 hours (Completed August 27, 2024)
Took part in the advanced-level Full Stack Web Development bootcamp, focused on gaining hands-on skills in modern technologies for building complete web applications.
View certificateFull Stack Developer Certified Specialist
ITCertificate
Completed October 31, 2024
Earned certification as a Full Stack Developer Certified Specialist, demonstrating advanced skills in building and managing complete web applications.
View certificate55+ courses completed on Platzi, SENA, and other platforms. View all certificates
Core
Technologies
HTML5
95%Semantic structures optimized for SEO and accessibility.
CSS3/Sass
92%Responsive designs, CSS animations, and scalable architecture.
JavaScript
98%ES6+, advanced patterns, and performance optimization.
TypeScript
90%Static typing for scalable enterprise applications.
React/Next.js
96%SSR, ISR, and optimized static applications.
Node.js
88%REST/GraphQL APIs, microservices, and JWT authentication.
UI/UX Design
85%User-centered interface design.
Cloud Architecture
82%Scalable infrastructure on AWS, GCP, and Azure.
Projects
Professional Task Manager — TODO App with Advanced React Patterns
A modern, full-featured task management app built with React 18 and Zustand. Includes an advanced reminder system with audio alerts, a stats dashboard, nested subtasks, color tagging, rich notes, a Pomodoro timer, localStorage persistence, light/dark themes, smooth animations, and a Mobile-First responsive design.
Shopi — Full Stack E-Commerce with Professional Authentication
A complete e-commerce platform built with React 18, Context API, React Router v6, and Tailwind CSS. Includes JWT authentication with professional-grade validation, a persistent shopping cart, a dynamic catalog integrated with a public API, order management, a user account panel, and a scalable backend with Express, Prisma ORM, and PostgreSQL.
Diccionario Dev — Spanish Technical Web Dictionary
A complete learning platform for web development with 200+ technical terms in Spanish. Includes smart search, interactive code previews, training modules (quizzes, live interviews), JWT authentication, an admin panel, an OpenAPI-documented REST API, and browser/VS Code extensions. Deployed on Vercel with PostgreSQL, Redis, and a scalable architecture.
What I Can
Do
For You
Web Development
Professional websites with Next.js and React. Responsive design, SEO included, and an admin panel.
Learn moreE-commerce
Complete online stores with integrated payments, inventory management, and an intuitive panel.
Learn moreAutomation
Eliminate repetitive tasks by integrating your favorite tools.
Learn moreTechnical SEO
Complete SEO audit and optimization. Core Web Vitals, Schema.org, and real Google rankings.
Learn moreLanding Pages
Conversion-optimized landing pages with A/B testing and behavior analysis.
Learn moreMy Path in
Development
Foundations & Technical Training
Started my development path with SENA. Completed the ADSI (Information Systems Analysis and Development) technologist program, building solid foundations in analysis, design, and software development. Began offering freelance web development services.
Expansion into Modern Web Development
Enrolled at Politécnico Grancolombiano to study Software Engineering. Started intensive training in React.js, Vite.js, TailwindCSS, and advanced JavaScript with Platzi. Began building full stack projects with modern technologies.
Certifications & Bootcamps
Completed the Talento Tech Full Stack Bootcamp (159 hours, Ministerio TIC). Earned ITCertificate certification as a Full Stack Developer Certified Specialist. Built complex projects like Shopi (full stack e-commerce) and Diccionario Dev (a learning platform with 200+ terms, PostgreSQL, and Redis).
Full Stack Specialization & Automation
Focused on business process automation and scalable architectures. About to graduate as a Software Engineer. Building full stack solutions for clients in Colombia and remote in the US, with a React, Next.js, Node.js, and PostgreSQL stack.
Let's Work
Together?
If you have a project in mind, need a developer for your team, or want to automate your business, let's talk. I respond within 24 hours.