👋 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

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

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

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

A Java library for taking and transforming pictures on Android.
⭐ Over 300 stars!

• 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

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.

• 📧 Email: fabianr7593@gmail.com
• 🌐 Portfolio: (coming soon)
• 🧵 Twitter: @ArcaneCoder7