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FelipeKreulich/README.md
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👨‍💻 About Me

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I'm a Software Engineer passionate about building scalable, secure and high-performance applications — from the database all the way to the interface.

  • 💼 Full Stack Developer @ POP Tecnologia e Mobilidade
  • 🏗️ I enjoy designing clean architectures and solving complex technical challenges
  • ⚙️ Experience across backend, distributed systems, APIs & cloud infrastructure
  • 📱 Building mobile apps with Kotlin (Android) and SwiftUI
  • 🔐 Background in cybersecurity & networking
  • ✍️ I write weekly on my blog about web dev, career & AI
  • 🌍 Based in Lisboa, Portugal · open to freelance & full-time

🛠️ Tech Stack

Frontend

TypeScript React Next.js Tailwind

Backend

Python PHP Laravel .NET

Mobile

Kotlin Android SwiftUI

Cloud & Databases

AWS MySQL PostgreSQL Prisma

🚀 Featured Projects

Project Description Tech
🕳️ Worm Hole Private file-sharing SaaS — encryption, auto-expiring unique links, CI/CD & cron jobs Next.js TypeScript Prisma NeonDB
🔐 CipherMesh E2EE LAN chat — Double Ratchet, Curve25519 + XSalsa20-Poly1305, P2P via mDNS, Terminal UI WebSocket Cryptography TUI
✍️ Personal Blog Weekly articles on web development, career & AI React Prisma PostgreSQL
🌐 Portfolio Where everything lives — dark/light theme, i18n, fully responsive Next.js TypeScript Tailwind

📊 GitHub Analytics

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🤝 Let's Connect

Portfolio LinkedIn X (Twitter) Instagram Blog Buy me a coffee



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  1. argus argus Public

    ARGUS — Real-time face detection and recognition system with a web-based live feed interface, built with Python, OpenCV and Flask.

    Python

  2. Orus-NeoVim Orus-NeoVim Public

    ⚙ My configs for NeoVim

    Lua

  3. phantom-ip phantom-ip Public

    PhantomIP is a CLI tool to rotate your IP using Tor or proxies. It features a dragon ASCII logo, configurable interval/duration, real-time IP display, and logging. Modular, extensible, and open sou…

    Rust

  4. secret-chat-lan secret-chat-lan Public

    Terminal chat with real end-to-end encryption (libsodium + Double Ratchet) for LAN and internet — zero-knowledge relay, TOFU/SAS verification, P2P mode

    JavaScript

  5. tamagotchi tamagotchi Public

    🕹️ Um Tamagotchi retrô feito pra web. Alimente, brinque e cuide do seu bichinho pixelado antes que ele morra de fome (ou tédio). Ciclo de vida completo, minigames, conquistas e sons 8-bit. Stats co…

    TypeScript

  6. venom-forge venom-forge Public

    VenomForge é uma ferramenta de geração de payloads utilizando o msfvenom do Metasploit Framework, focada em Windows, Android e Linux.

    Python