Gui Wai Siong (Alex)

Mobile & Full Stack Developer | Kotlin, React, Python | AI Enthusiast

About Me

I’m a Singapore-based software engineer with over 10 years of experience in mobile (Android/Kotlin) and full stack (MERN) development. I’ve worked on fintech, banking, and AI hobby projects. Currently pursuing a Master's in Computer Science at Georgia Tech (Expected 2027).

Featured Projects

OKX P2P Crypto Trading Module

OKX P2P Crypto Trading Module

Built P2P trading features in Kotlin (MVVM) for the OKX mobile app (Android/iOS). Collaborated with cross-functional teams in Agile Scrum sprints.

Citibank App Accessibility

Citibank App Accessibility

Implemented accessibility features for Citibank APAC Android app. Supported multiple markets including HK, AU, RU.

AI WhatsApp Chatbot

Personal project using Flask + OpenAI API to simulate intelligent WhatsApp conversations. Explored conversational design and chatbot integrations.

AI Trading Bot

Python-based bot using Jupyter Notebook and technical indicators to simulate and test basic crypto trading strategies.

Orion React Native Platform

Led Android & React Native projects, handled CI/CD with Jenkins, integrated JPush SDK and CodePush for live updates.

Contact Me

Email: xnmalex@gmail.com

Mobile: +65 8680 0388

Resume: Download Resume