👋 Hi, I'm Leo Wu

🚀 Senior Programmer | System Architect | Tech Explorer

I'm a Hong Kong-based full-stack developer with over 5 years of experience in mobile and web development. I specialize in Flutter, Node.js, and TypeScript, and I love building scalable systems with MongoDB, Redis, Docker, and AWS.

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🧑‍💻 Tech Stack

• Frontend: Android(Kotlin, Java), iOS (Swift), Next.js, React.js, HTML/CSS/JS
• Backend: Node.js, TypeScript, Express.js, Hapi.js, Java with Spring Boot, Go, Python
• Database: MongoDB, Elasticsearch, Redis, MySQL
• DevOps: Docker, PM2, AWS EC2/S3/CloudFront/Lambda, GitHub Actions
• Security & Observability: Log Center, Rate Limiting, SSE
• AI/ML: RAG with LLMs, Vector Search, OpenAI, Elastic Embeddings

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📬 Let's Connect

• 📧 Email: leokwsw@gmail.com
• 💼 LinkedIn

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“Keep building. Stay curious. The journey is the reward.” ✨