Hello, I'm

Yeifran Hernandez

> Full Stack Developer _
Yeifran Hernandez - Full Stack Developer
Available for work
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About Me

Since I was young, I've had an unstoppable curiosity about how things work. In 2015, browsing Telegram, I stumbled into the world of hacking and automation — and realized that programming was the master key. I started self-teaching: SQL injection, automation scripts, Python through free Udemy courses. No roadmap, just following curiosity. During Colombia's 2020 quarantine, I turned isolation into acceleration, earning a formal programming certification through the MinTIC × Universidad de Medellín program. Since then, I haven't stopped. I've built projects from scratch, learned new technologies as I needed them, and founded NeuralJIRA, a small software agency with real clients. Now I'm focused on AI — LLaMA, embeddings, RAG. My deepest goal: bringing accessible technology to my hometown, La Guajira. Currently focused on AI and building scalable solutions.

Frontend

Skills & Expertise

🟨

JavaScript

95%
🖌️

HTML & CSS

95%
⚛️

React

88%
💫

Svelte

85%
🎨

Tailwind CSS

85%
🚀

Astro

80%

Next.js

82%
🟩

Node.js

90%
🐍

Python

92%
🔥

Flask

85%
🗄️

Prisma

78%
☁️

Supabase

80%
🔗

APIs REST

90%
📚

Git/GitHub

95%
🐳

Docker

75%

Vercel

80%
🤖

Ollama + Termux

70%

Projects

Career

💼

Freelance Developer

2020 - Present

Independent work on web projects

👨💻

Full Stack Developer

2019-2020 - Present

In a tech company

💻

Freelance Web Development

2021 - Present

Experience in independent web projects

🐍

Python Certificate

2022

Python Professional Certification

⚛️

Advanced React

2021

Udemy Certification

💡
2014

First Spark

Curiosity about technology, first ideas and dreams of building something meaningful.

🐍
2015

Discovery

Found the world of hacking and automation on Telegram. Wrote my first Python scripts.

🎓
2016

High School Graduate

Graduated from high school. The foundation was set.

🎓
2017

University Start

Started university in July — studied one semester of Environmental Engineering before pivoting to tech.

📚
2018

SENA Training

Technical diploma in Natural Resource Management at SENA — built a strong foundation in systems and problem-solving.

2020

Graduation + Quarantine

Graduated from SENA. Turned quarantine isolation into intensive self-learning.

🏆
2022

MinTIC Certification

Certified by MinTIC × Universidad de Medellín. Started freelance projects with real clients.

🌎
2023

Regional Expansion

Expanded to Barranquilla and Doradal — first paying clients across the region.

🚀
2024

NeuralJIRA Founded

Moved to Bogotá. Founded NeuralJIRA. Took on more complex projects.

🤖
2025

AI Specialization

Deep dive into AI: LLaMA, embeddings, RAG. Building the next frontier.

🎯
2026

Here & Now

Bogotá. Scaling NeuralJIRA and building the next generation of digital products.

Services

Comprehensive solutions to build modern, scalable applications with cutting-edge technologies.

⚛️

Frontend Development

Building modern, responsive web applications with React, Next.js, Astro, and Svelte. Focus on performance, accessibility, and user experience.

🔧

Backend Development

Creating robust APIs and server-side applications with Node.js, Python Flask, and database management using Prisma and SQLite.

🚀

Full-Stack Solutions

End-to-end web development from concept to deployment. Integrating frontend and backend with modern tools like Vercel and Docker.

🖥️

Desktop Applications

Developing cross-platform desktop applications with Python and Flask, packaged with PyInstaller for easy distribution.

Contact

Let's work together on your next project