Full-stack developer using Ruby on Rails and Next.js with a background in business and hospitality. I enjoy building practical web apps and continuously improving my skills everyday.

🔍 Currently open to full-stack developer roles and missions via Malt or Upwork

Languages

Frameworks & Libraries

Databases

Tools & Others

Networth - Personal Portfolio Tracker: networth.cv

• Full-stack Rails app with real-time market data, AI, and multi-currency support.
• Real-time stock & crypto tracking and an AI-powered financial assistant.
• Dockerized for local development; automated testing via GitHub Actions CI/CD.

Underrated - Sorare Football Card Analytics: underrated.live

• Real-time live auction data via authenticated Sorare GraphQL API
• Live auction countdown timers, FPL stats integration and AI-powered market analyst

Side-B - Le Wagon final group project: side-b.app

• Vinyl collector web app built with Ruby on Rails
• AI Assistance, REST API, CRUD, PostgreSQL, team collaboration

AI News - 5-day group project: ai-news.live

• AI-powered news platform built as an MVP with Ruby on Rails
• REST API, PostgreSQL, CRUD

Kaminari — Rails pagination gem

• PR #1151 — Replaced deprecated remote: option with data: {turbo:} for Rails 7.2 compatibility
• PR #1152 — Fixed format: option being ignored in page_url_for

ruby-openai — OpenAI API Ruby client

• PR #645 — Improved exception messages to include API error details from response body

simple_form — Rails form builder gem

• PR #1871 — Clarified README documentation on browser_validations default behavior

• Maintaining and improving Networth and Underrated.
• Exploring Docker, CI/CD pipelines, and testing practices.
• New private projects for clients.
• Improving performance and accessibility on apps.
• Coding everyday.

• LinkedIn: https://www.linkedin.com/in/vitor-de-castro-a279b8151/
• Portfolio: https://vitor-de-castro.github.io/
• Freelance missions: Malt · Upwork