feat: added sat-paing-thu dev (#242)

Author: sat-paing-thu-168

content/profile/satpaingthu.mdx

@@ -0,0 +1,56 @@
+---
+name: Sat Paing Thu
+description: Backend Developer
+image: "https://sat-paing-thu-168.github.io/edited_me.png"
+---
+
+# Sat Paing Thu
+
+**Self-taught Developer** with more than 3 years of experience, including **2+ years specializing in mobile development** with React Native.  
+Currently transitioning into backend development, with a strong focus on building scalable applications and RESTful APIs using **Node.js**, **Express.js**, and **Spring Framework**.  
+Aspiring **Backend Architect** passionate about designing secure, modular systems.
+
+---
+
+## 🔭 Current Focus
+
+- Deepening my knowledge in **Fintech** domain
+- Mastering **backend architecture** principles and patterns
+
+---
+
+## 🛠️ Tech Stack
+
+### Frontend & Mobile
+
+![React Native](https://img.shields.io/badge/React_Native-20232A?style=for-the-badge&logo=react&logoColor=61DAFB)
+![React](https://img.shields.io/badge/React-20232A?style=for-the-badge&logo=react&logoColor=61DAFB)
+![JavaScript](https://img.shields.io/badge/JavaScript-F7DF1E?style=for-the-badge&logo=javascript&logoColor=black)
+![TypeScript](https://img.shields.io/badge/TypeScript-007ACC?style=for-the-badge&logo=typescript&logoColor=white)
+![Expo](https://img.shields.io/badge/Expo-000020?style=for-the-badge&logo=expo&logoColor=white)
+
+### Backend
+
+![Node.js](https://img.shields.io/badge/Node.js-339933?style=for-the-badge&logo=nodedotjs&logoColor=white)
+![Express.js](https://img.shields.io/badge/Express.js-000000?style=for-the-badge&logo=express&logoColor=white)
+![Java](https://img.shields.io/badge/Java-ED8B00?style=for-the-badge&logo=openjdk&logoColor=white)
+![Spring](https://img.shields.io/badge/Spring-6DB33F?style=for-the-badge&logo=spring&logoColor=white)
+![PostgreSQL](https://img.shields.io/badge/PostgreSQL-316192?style=for-the-badge&logo=postgresql&logoColor=white)
+![MongoDB](https://img.shields.io/badge/MongoDB-4EA94B?style=for-the-badge&logo=mongodb&logoColor=white)
+![RESTful APIs](https://img.shields.io/badge/REST-02569B?style=for-the-badge&logo=rest&logoColor=white)
+
+---
+
+## 📈 GitHub Stats
+
+![Sat's GitHub stats](https://github-readme-stats.vercel.app/api?username=sat-paing-thu-168&show_icons=true&theme=radical)
+
+---
+
+## 📫 Let's Connect
+
+- [LinkedIn](https://www.linkedin.com/in/sat-paing-thu-02258316a)
+- [Portfolio](https://sat-paing-thu-168.github.io/)
+- [Email](mailto:satpaingthu168@gmail.com)
+
+---