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DataDruide/README.md

👋 Hi, I'm Marcel – Junior Full Stack Developer (Python · Flutter · SwiftUI · NestJS)

visitors GitHub followers

🚀 About Me

I'm a passionate Junior Fullstack Developer building seamless mobile & backend experiences – with a strong focus on privacy, security & usability.

📱 Mobile Development (Flutter & SwiftUI)

  • ✔ Clean UI, responsive design & animations with Flutter (iOS & Android)
  • ✔ Developed Schadensregulierungsapps, Holiday Finder, and CarPlay-integrated iOS apps
  • ✔ Experience in SwiftUI: modern UIs, MVVM, and UIKit-interop
  • ✔ Used LottieFiles for animation-rich UIs and dynamic onboarding
  • ✔ Strong experience in state management: Riverpod · Bloc · Provider
  • ✔ Local data with Hive · Secure Storage · Shared Preferences

🛠 Backend & Security (NestJS & TypeScript)

  • ✔ RESTful API development with NestJS · TypeORM · PostgreSQL
  • ✔ Authentication & authorization with JWT, PGP, Argon2 password hashing
  • ✔ Real-time systems with WebSockets, Supabase & Firebase
  • ✔ Clean architecture, modular code & GitHub Workflow automation
  • ✔ Containerized DevOps setup with Docker & .env-driven config

🧰 Tech Stack

Frontend & Mobile

Flutter Dart Swift SwiftUI Lottie Riverpod BLoC Hive

Backend & DevOps

NestJS TypeScript PostgreSQL Docker GitHub Actions Supabase Firebase

🔐 Security Stack

Classical Security

JWT PGP Argon2

Post-Quantum Cryptography

Kyber Dilithium X3DH Double Ratchet

Network Security

libp2p WebRTC Tor Ibex

Privacy Enhancements

Secure Storage Device Binding UUID Auth

🏆 Featured Projects

Project Description Tech Stack
🔐 Ripple Mobile End-to-end encrypted chat with PGP Flutter · NestJS · PGP
🛡️ Web Frontend Ripple A TicToc Alternative (German version) Flutter · Firebase
🧠 PflegeBlick Healthcare app for patients & caregivers Flutter · REST API

📊 GitHub Analytics

GitHub Stats Top Languages

📫 Let's Connect

"Maximum Privacy. Zero Compromise."
— Devise, Build, Secure.

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