Fullstack Engineer from São Paulo, Brazil 🇧🇷

I build things for the web. 10+ years turning ideas into production systems that actually work and scale.

Backend (Where I Live)

# 8+ years building with Ruby on Rails
Rails.application.routes.draw do
  resources :scalable_apis
  resources :background_jobs
  resources :real_time_systems
end

• Ruby on Rails, Node.js, Python
• PostgreSQL, Redis, MongoDB
• REST & GraphQL APIs
• Sidekiq, message queues, async processing

Frontend (Because Someone Has To)

const skills = ['React', 'Next.js', 'Flutter', 'TypeScript'];
// Full-stack means actually doing both ends

Infrastructure

• AWS (Lambda, S3, RDS, ElasticSearch, DynamoDB)
• Docker, Linux, CI/CD pipelines
• Serverless & Microservices

I've built complete systems from scratch - the kind that start as an idea on a napkin and end up handling thousands of users in production:

• 📦 Logistics platforms - Fleet management, real-time tracking, offline-first mobile apps
• 🤝 Partnership systems - Referral platforms, automated rewards, payment processing
• 📝 Knowledge management - Wikis, documentation systems, collaborative tools
• 🔄 Legacy migrations - Taking 15-year-old systems and making them modern without breaking things
• 🏢 ERPs - Because every business needs custom software that actually fits

I care about:

• Code that works in production, not just on my machine
• Tests that catch bugs before users do (RSpec enthusiast)
• Architecture that makes sense when you revisit it 6 months later
• Performance - slow is broken
• Documentation - future you will thank present you

I don't care about:

• Perfect code that ships never
• Premature optimization
• Technology hype trains
• 10x engineer nonsense

def solve_problem(requirements)
  understand_the_real_need
  choose_boring_technology
  write_tests_first
  ship_iteratively
  monitor_in_production
  improve_based_on_data
end

Right now exploring:

• Rust for when Ruby isn't fast enough
• Advanced Elasticsearch patterns
• System design at scale
• Better ways to architect mobile-first systems

• Email: arthurjm95@gmail.com
• LinkedIn: linkedin.com/in/artmoura
• Location: São Paulo, Brazil 🇧🇷

💡 Philosophy: Make it work, make it right, then make it fast. In that order.

☕ Powered by: Coffee, clean code, and the belief that good software should be boring and reliable.

⭐️ If you're working on something interesting or just want to chat about building systems that scale, feel free to reach out!