Hello, how are you?

Francisco J. Vélez O.

@Fravelz

Web Developer – Frontend

I'm a frontend developer specialized in web layout, creating fluid, animated, functional, minimalist interfaces. I work with proper semantics and SEO, integrate backend data and services into the frontend, and I also focus on structuring and maintaining frontend code correctly.

Available

Bogotá, Colombia

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Main Projects

A selection of my most notable projects as a frontend developer.

Featured

In development

ICFES Master

Interactive ICFES (Saber 11) prep: practice by area, mock exams, gamification, and progress. Next.js 15, React 19, Supabase, feature-based architecture.

Next.jsReactSupabaseTypeScript+5

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In development

WEB To-Do List

Task app with Next.js 16 and React 19. Prisma and PostgreSQL, Zustand, Radix UI, Tailwind CSS 4, dark mode, and Vitest tests.

Next.jsReactTypeScriptTailwind CSS+5

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In development

Frontend Mentor (Next.js)

Frontend Mentor challenges monorepo with App Router. Isolated challenge hub, typed data, and tests.

Next.jsReactTypeScriptTailwind CSS+1

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Technologies

Note: This information is not representative nor based on a global or exact measure. It is used only to give an approximate emphasis on how I use each tool and which ones I feel I master the most compared to others.

HTML

Level: Intermediate·Category: Frontend

CSS

Level: Intermediate·Category: Frontend

JavaScript

Level: Basic·Category: Frontend

Astro

Level: Basic·Category: Frontend

Tailwind CSS

Level: Intermediate·Category: Frontend

TypeScript

Level: Intermediate·Category: Frontend

React

Level: Basic·Category: Frontend

Next.js

Level: Basic·Category: Frontend

Supabase

Level: Learning·Category: Backend

About Me

2017

At age 9 I received my first computer. At first I used it to watch TV shows on YouTube, but everything changed when I discovered La Geekipedia de Ernesto. I started with courses on Raptor, Java, and Python, and soon built my first graphical interfaces in Java.

2018-2021

Over time I began exploring other channels and areas of computing: data science (Pandas, NumPy), artificial intelligence (TensorFlow, Keras), and cybersecurity fundamentals (Bash, Python, and Linux). I also learned and practiced languages such as Python, Java, Go, Ruby, Batch, HTML, and CSS, among others.

2021

I created my first GitHub account, although three years later I lost access to it.

Github

2021-2024

Later I went deeper into Git and GitHub, writing Python scripts with various libraries. I also worked on desktop development (PyQt5, PySide, Tkinter, and Qt) and web development (HTML, CSS, and JavaScript). I published several of these projects on GitHub (in 2024 I created my second account—my current main account).

2025

In September of that year I left school while in 10th grade. Over the following months I focused self-taught on web development, specializing in frontend.

Certifications

+2026

Currently I continue learning web development and building projects. My goal is to become one of the best frontend developers by 2031 and work at Google. I also plan to complete high school by taking the ICFES 11 validation, studying independently.

Hobbies

Developing web projects

I build interfaces, test ideas, and experiment with animations.

Customizing my Arch Linux OS

Tuning my setup: dotfiles, productivity, performance, and aesthetics.

Politics & ideas

I'm into political ideologies, geopolitics, and how power and institutions shape the world.

Exercise and calisthenics

I train for health, discipline, and energy.

Typing practice (47-62 WPM)

I practice speed and accuracy; you can see my profile here:

Monkeytype

Contact Me

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