Hi, I’m Jonathan Ramalho 👋
I build high-performance apps 🚀

Senior Mobile Developer specialized in React Native, AI-assisted development (GitHub Copilot Certified), performance optimization, and secure mobile architectures. I build fast, scalable, and reliable user experiences.

React NativeTypeScriptMobile ArchitectureAI-assisted Dev

Highlighted Projects

Vivae (Invillia)
vivae.com.br

Lead mobile developer of the Vivae platform, handling large-scale features, RN 0.74 → 0.81 upgrade with New Architecture, secure mutex-based token refresh, Firebase integrations, and HLS video streaming with DRM awareness.

React NativeReduxFirebase
Porto Seguro Carro Fácil (Pixter)

Development of core features, secure OAuth/OIDC login, real-time location system, performance tuning, and end-to-end test coverage using Jest.

React NativeStyled ComponentsOAuth/OIDC
Video AI Cuts (Side Project)

🚧 Currently Building

AI-powered pipeline that auto-generates video clips using Whisper, embeddings, reranking, and ffmpeg. Structured as a TypeScript monorepo with workers and a hexagonal architecture.

Node.jsFFmpegEmbeddings
RN Procedural UI (Open Source)

🚧 Currently Building

Experimental React Native library for procedural theming and generative UIs using Skia, animations, and declarative patterns.

React NativeSkiaAnimations