Arcane Coder 777 | Full Stack Engineer
👋 Hi, I'm Fabian Rosales — a Full Stack Developer with over 13 years of experience,
based in Costa Rica and passionate about building modern, scalable software.
I go by Arcane Coder 777 as my professional brand and creative identity,
blending code and storytelling in the tools and libraries I build.
- 🚀 Creator of Tenshi-Backend, Wizard Player, and more
🚧 Available for Hire
Looking for help with a backend API, a Front end web, Android native project, server administrator in AWS, or SaaS architecture?
I offer consulting and freelance development:
- Integrate into your existing team and codebase
- Build full systems from scratch
- Refactor, modularize, or improve performance
- Set up CI/CD pipelines, server environments, and AWS-based infrastructure
📬 Contact me at fabianr7593@gmail.com
🔥 Highlighted Projects
Tenshi-Backend
A modular and scalable REST API framework built in Node.js with TypeScript & Express.js.
- Supports dynamic modules, middleware, hooks, and CRUD generation
- Includes access control, API Key & JWT protection, audit logs
- Fully open-source and production-ready
Wizard Player
A complete Android video player library based on VLC. Built for phones, tablets, and Android TV.
- Multi-audio, subtitle support, UI customization
- Events, listeners, theme injection
- Built with Kotlin & Jetpack Compose support
MagicalCamera
A Java library for taking and transforming pictures on Android.
⭐ Over 300 stars!
🗂 Tech Stack
- Languages & Scripting – TypeScript, JavaScript, Java, Kotlin, C#, SQL
- Backend Frameworks – Node.js, Express.js, .NET Core, REST API development
- Mobile Development – Android SDK, Jetpack Compose, VLC-based and exoplayer media libraries
- Frontend Tools – Next.js, TailwindCSS
- Cloud Platforms – AWS (EC2, S3, IAM, Route53), Firebase, Render, Vercel
- DevOps & Tooling – GitHub Actions, CI/CD, Nginx
- System & Infrastructure – VPS & Dedicated servers, Linux (Ubuntu), DNS, IP & Firewall management
- Databases – MySQL, PostgreSQL, MariaDB, SQL Server
- Software Design – SOLID principles, modular architecture, design patterns.
- Microservices – service decoupling, API gateways, scalability
📚 Continuous Learning & Focus Areas
I’m constantly expanding my technical skillset to stay sharp and versatile across modern development needs.
Current focus areas include:
- Cybersecurity – authentication, data protection, secure API design
- UI/UX Principles – usability, accessibility, and intuitive user flow design
- Observability – logs, metrics, and monitoring best practices for production systems
These areas directly support my work in building robust backend systems and scalable SaaS platforms.
📈 GitHub Stats
🎙 Contact
- 📧 Email: fabianr7593@gmail.com
- 🌐 Portfolio: (coming soon)
- 🧵 Twitter: @ArcaneCoder7