Hi there! I'm Fernando Vaz, a Software Engineer, passionate about building robust architectures and deeply intuitive, modern applications. Welcome to my GitHub profile! 🚀
As a recently graduated Software Engineer (UniCesumar), I am driven by the intersection of clean, scalable code and expressive UI/UX design. I specialize in the Android Ecosystem (Kotlin, Jetpack Compose, Wear OS) and Backend Systems (Java, Spring Boot).
I have a proven track record of shipping production-ready applications, having developed and published top-tier utilities on the Google Play Store with thousands of active users. My goal is to build software that is not only highly performant but also creates a significant and positive impact on the user's daily life.
I am always exploring new frontiers, particularly the integration of Artificial Intelligence (LLMs, Gemini API) within software automation and user workflows.
| Category | Technologies & Tools |
|---|---|
| Mobile Development | Kotlin, Android SDK, Jetpack Compose, Wear OS, Material Design 3, Coroutines/Flow, Hilt, Room, Glance Widgets |
| Backend & Web | Java, Spring Boot, React, JavaScript (ES6+), Vite, Node.js |
| Databases & Cloud | PostgreSQL, MySQL, SQLite, Cloudflare Pages, Firebase |
| Architecture & Tools | MVVM, Clean Architecture, Git, Docker, Gradle (Version Catalogs/KSP), Figma, Postman |
| Areas of Interest | AI Integration (Gemini API), Cross-Device Ecosystems, UI/UX Motion Design, CI/CD Automation |
1. Pixel Compass 🧭
- Status: Launched (43,000+ Installs)
- Description: A premium navigation and environmental utility for Android and Wear OS. It features a highly interactive UI, advanced sensor fusion (True North, GPS Elevation), configurable home screen widgets, and smart meteorological insights.
- Tech Stack: Kotlin, Jetpack Compose, Wear OS, Jetpack Glance (Widgets), Retrofit & Moshi, SensorManager, Hilt, Play Billing.
2. Pixel Pulse 🎛️
- Status: Launched
- Description: A sophisticated sound level meter and WHO-compliant hearing health coach for Android and Wear OS. It calculates real-time "Noise Dose," tracks cumulative exposure across devices with "Zero-Gap" synchronization, and features military-grade encrypted backups (
.ppbk). - Tech Stack: Kotlin, Jetpack Compose, Wear OS, AudioRecord & FFT (JTransforms), Room Database (Pre-aggregations), WorkManager/Foreground Services.
- Status: Launched (v3.0)
- Description: My professional portfolio and the official landing portal for my apps. Features cinematic "Scrollytelling," an interactive serverless Support/Feedback API via Resend, and an automated Markdown Changelog pipeline translated into 6 languages via the Gemini API.
- Tech Stack: React, Vite, Cloudflare Pages (Functions/Middleware), Framer Motion, Lenis Scroll, Material Design 3, Node.js.
4. boxIdea 💡
- Status: Completed
- Description: A collaborative system where users can submit work-related experiences and ideas, categorized by themes, to foster innovation within teams.
- Tech Stack: Java, Spring Boot, PostgreSQL, JWT Authentication.
5. OpenLibrary 📚
- Status: Completed
- Description: A microservices-based online book catalog platform to manage book inventories, user loans, and notifications.
- Tech Stack: Java, Spring Boot, PostgreSQL, Microservices Architecture.
Beyond my formal curriculum, I actively seek out opportunities to stay current with the latest industry trends.
- Events & Community: I've had the pleasure of attending events like Google for Developers, DevFest Bahia, and BTX (Bahia Tech Experience), gaining valuable insights into new technologies and expanding my professional network.
- Continuous Learning: I constantly complement my education with specialized courses in AI integration, advanced Kotlin paradigms, and full-stack web development.
- Email: contact@fertwbr.com
- LinkedIn: linkedin.com/in/fernando-bela