Hi, I'm Isaac Alves
Software Engineer | Backend Developer
🚀 Passionate about building scalable applications and optimizing system performance. Experienced in backend development, API design, and frontend engineering.
Skills & Technologies
- Backend: Ruby on Rails, Sinatra
- Frontend: Vue.js, React.js, Tailwind CSS
- Database: PostgreSQL, MySQL, SQLite
- DevOps: Docker, Kubernetes, Redis, Sidekiq
- Tools: Linux, Git, Insomnia, Sentry, Grafana
About Me
Software engineer with a strong background in web development, specializing in Ruby on Rails. Skilled in building scalable applications, integrating payment APIs, and improving system reliability through best coding practices.
Work Experience
Big Data Health | Software Engineer
Jan 2025 — Present
- Refactored legacy Ruby on Rails code (v4.2) into modular services, increasing maintainability and testability across the system.
- Improved test coverage and reliability by implementing RSpec and FactoryBot in legacy areas.
- Collaborated with DevOps to streamline deployments using Docker, Azure Pipelines, and Kubernetes.
- Participated in code reviews and agile planning, improving team velocity and technical consistency.
- Tech: Ruby on Rails, PostgreSQL, Docker, Kubernetes, Redis, Sidekiq, Sentry
Fetchly Labs | Software Engineer
May 2023 — Dec 2024
- Built and maintained backend services in Ruby on Rails, focusing on performance and scalability.
- Delivered customer-facing features with Vue.js and Tailwind CSS, improving UX and engagement.
- Participated in database optimization and API design to support growing user needs.
- Enhanced team productivity through pair programming and collaborative debugging sessions.
- Tech: Ruby on Rails, PostgreSQL, REST API, Docker, Tailwind CSS, Vue.js
Federal Institute of Piaui | Software Engineer Intern
Mar 2022 — Mar 2023
- Developed and deployed internal systems using Ruby on Rails to support academic and administrative workflows.
- Designed intuitive user interfaces with Tailwind CSS, enhancing usability for non-technical users.
- Promoted clean code practices and teamwork in cross-functional student projects.
- Gained solid experience working with SQL databases, Git workflows, and Linux environments.
- Tech: Ruby on Rails, SQLite3, Tailwind CSS
Featured Projects
Finance App
🌐 Live Site: Personal Finance Tracker
- Description: Modern personal finance management application built with Ruby on Rails 8, featuring real-time transaction management, custom categories with color coding, and responsive design. Implements Hotwire (Turbo + Stimulus) for instant UI updates without page reloads and includes secure user authentication.
- Tech Stack: Ruby on Rails 8, PostgreSQL, Hotwire (Turbo + Stimulus), TailwindCSS, Devise, RSpec, Docker, Kamal
- View Project
Payment System - API
- Description: Robust payment processing API integrating Mercado Pago and PagSeguro with an automatic fallback system to ensure high transaction reliability. Implemented JWT-based authentication and role-based access control.
- Tech Stack: Ruby on Rails, PostgreSQL, JWT, Mercado Pago API, PagSeguro API, RSpec
- View Project
Payment System - Frontend
- Description: React-based frontend for a payment processing system, featuring a responsive user-friendly payment form and an admin dashboard for transaction tracking. Implemented real-time payment status updates and secure credit card handling.
- Tech Stack: React.js, Tailwind CSS, REST API, Webhooks
- View Project
Hospital Manager
- Description: Medical Office Management System using Ruby on Rails, implementing role-based access for doctors and receptionists. Integrated appointment scheduling and patient record management.
- Tech Stack: Ruby on Rails, PostgreSQL, Role-Based Access Control (RBAC)
- View Project
URL Shortener
- Description: Scalable URL Shortener using Ruby, Sinatra, and MySQL, featuring unique 6-character URL generation, access tracking, and analytics for monitoring link performance.
- Tech Stack: Ruby, Sinatra, MySQL, REST API
- View Project
Education
- Federal Institute of Piaui - Technician in System Development (2021 — 2023)
Let’s Connect
- 📧 dev.isaaclvs@gmail.com
- 💻 GitHub
- 📱 +55 86 99980-4586