Things I've built

Case studies covering the problem, my role, the architecture, and what I learned. Filter by area to find backend, front-end, DevOps, AI agent, or machine learning work.

Showing 6 projects

• Software

  Warehouse Stock Management

  A handheld inventory app and Node.js backend that replaced manual stock tracking for warehouse operations staff.

  • Node.js
  • React
  • SQL
  • NoSQL

  Read case study

• AI Agents

  AI-Powered Daily Blog

  An autonomous pipeline of AI agents that writes and publishes a new post on blog.haheng.au every day.

  • AI Agents
  • LLM APIs
  • Next.js
  • Scheduling

  Read case study

• Machine Learning

  Deepfake Detection (LSTM + rPPG)

  A thesis model that spots deepfake videos by reading heart-rate signals from facial skin and classifying them over time with an LSTM.

  • LSTM
  • rPPG
  • Computer Vision
  • Deep Learning

  Read case study

• Software

  React Web Platform

  A production web app built from scratch, from architecture through Docker and Kubernetes deployment on AWS.

  • React
  • Node.js
  • Docker
  • Kubernetes

  Read case study

• Software

  Student Registration & Records System

  A full-stack web application for new student registration and administrative record management at a university.

  • Web application
  • SQL

  Read case study

• Software

  This Portfolio — haheng.au

  A static-first Next.js site, tested in CI and self-hosted on AWS S3 + CloudFront with infrastructure as code.

  • Next.js
  • TypeScript
  • Tailwind CSS
  • AWS

  Read case study