I’m a Fullstack Software Engineer with 10 years of experience building backend-heavy web applications, APIs, and automation tools.

My career started with Ruby on Rails, where I delivered production systems for companies of different sizes. Over the last year, I’ve transitioned into Python fullstack development, working with FastAPI on the backend and React/Next.js on the frontend, supported by real projects, continuous learning, and Python-based deliveries for local businesses.

I have strong experience designing scalable architectures, integrating complex APIs, optimizing backend performance, and building user-focused interfaces. I’ve also worked remotely with a U.S.-based team for more than 2 years, collaborating in English and high-autonomy environments.

Alongside my fullstack work, I’ve been building AI/LLM projects, including Review Analyzer, an AI-powered platform using Python, FastAPI, OpenAI API, structured prompting, and embeddings.

In my free time, I like to play Online Games(🕹️), read books (📚), watch soccer games (⚽️), movies (🎞️) and series (📺).

I love to go to the gym(💪🏻) and practice Krav Maga(🥋).

• 🌍  Based in Aracaju - Sergipe, Brazil
• ✉️  Contact: contato@rafaelaquino.net
• 🤝 Open to Python Backend and Fullstack opportunities

• Review Analyzer — AI-powered review analysis platform
  Python • FastAPI • OpenAI API • Embeddings • React
  👉 https://review-analyzer.rafaelaquino.net

• Little Invest — Fullstack investment simulation platform
  Next.js • TypeScript • Strapi • TailwindCSS
  👉 https://little-invest.rafaelaquino.net

• Google Calendar → Excel Automation Tool
  Python automation using OAuth2 for data extraction and reporting

Backend
Python, FastAPI, Ruby on Rails, REST APIs, Clean Architecture

Frontend
React, Next.js, TypeScript, JavaScript, HTML, CSS, TailwindCSS, Sass, Slim

AI / LLM Projects
OpenAI API, Structured Prompting, Embeddings, Semantic Search, Vector Databases (concepts)

Testing
Pytest, RSpec, Minitest, Playwright

Infrastructure & DevOps
Docker, AWS (EC2, S3), Render, Heroku, DigitalOcean, CI/CD

Databases
PostgreSQL, MySQL, Redis, Snowflake, Redshift

• Beware of Common Big O Notation Traps in Job Interviews!
• Service Objects: Organizing Business Logic in Ruby on Rails
• Form Object: Cleaning Up Controller Logic in Ruby on Rails