andy@timeles:~$ whoami

Andy Leong

Computer Science enthusiast & web designer hobbyist

View CV See projects →
~/about

Hello, world

I'm a developer from Singapore who likes working across the whole stack — from React frontends and Node backends down to the Docker, Kubernetes and Terraform that ship them. I graduated with a Diploma in Information Technology from Singapore Polytechnic.

Outside of building things, I compete in capture-the-flag competitions — three straight years of CDDC BrainHack finals — and maintain PracticeMe, a gamified JavaScript practice platform still used by SP students today.

  • TypeScript
  • React
  • Next.js
  • Node.js
  • Python
  • PostgreSQL
  • AWS
  • Docker
  • Kubernetes
  • Terraform
~/writing

Latest posts

All posts →

Three Years of CDDC BrainHack Finals

I qualified for the CDDC BrainHack CTF finals three years in a row — placing 7th in the Pre-University category in 2024 and 10th in 2026.

CTFCybersecurity

Lag and Crash 4.0 CTF

I attended the Lag and Crash 4.0 CTF and won 6th place with my team.

CTFCybersecurity
~/projects

Recent projects

All projects →
2026
Personal Portfolio Website
You are looking at it now!
AstroReactTailwind CSS +3
2024
Old Personal Portfolio Website
This is the old version of my personal portfolio website, which I built with Astro, React, Tailwind CSS, and TypeScript.
AstroReactTailwind CSS +3
2023
SST Scheduled Jobs
A proof of concept for scheduled email sending using SST as Infrastructure as Code (IaC) and AWS EventBridge for scheduling.
SSTAWS EventBridgeAWS Lambda +1
SST Whiteboard
A multi-user whiteboard tool for Project INC with SST as the IAC (Infrastructure as code) to deploy into AWS using open-next.
NextJSTLDrawSocket.io +2
T3 Flow
A multi-user collaboration flowchart tool using the React-flow library.
NextJStRPCPrisma +2
~/ctf

CTFs & awards

  1. 2026 CDDC BrainHack CTF Finalist · 10th, Pre-University
  2. 2025 CDDC BrainHack CTF Finalist
  3. 2025 SMU Whitehacks Top 10
  4. 2024 CDDC BrainHack CTF Finalist · 7th, Pre-University
  5. 2024 Lag and Crash 4.0 CTF 6th place
  6. 2024 Sentinel Programme SHIELD Award
  7. 2021 GCE O-Level Computing Top in cohort

~/contact

Let's work together

Open to collaborations, freelance projects, and interesting conversations.

leongandy026@gmail.com