//1
PriceWise
An autonomous AI shopping agent that compares prices and reviews across retailers, delivering structured receipts via a conversational interface with selective human-in-the-loop approval.
LangGraphFastAPIOpenAINext.jsPostgreSQLDocker
I build AI-powered full-stack applications focused on turning ideas into products that solve real problems.
JavaScript
Java
Python
Next.js
React
TypeScript
PostgreSQL
Docker
Tailwind CSS
JavaScript
Java
Python
Next.js
React
TypeScript
PostgreSQL
Docker
Tailwind CSS
SCROLL
ABOUT
Developer
I'm Yungju, an undergraduate Computer Science student at the National University of Singapore. I made an intentional pivot from Business and Economics to CS because I wanted to turn ideas into reality through code.
I focus on building AI-powered full-stack applications , from autonomous agents to real-time platforms, using tools like Next.js, Python, and OpenAI. Most of my projects start from a simple question: how can technology make this easier?
Fluent in English and Korean, I bring an international perspective from growing up in Kuala Lumpur and studying in Singapore. Beyond full-stack development, I'm drawn to software engineering and cybersecurity, aiming to build systems that are both powerful and secure. When I'm not coding, I'm contributing to the developer community at NUS as Head of Technology at Developer Group.
SELECTED WORK
Projects
//2
InterviewPilot
A full-stack mock interview platform that generates role-tailored questions, conducts speech-based interviews with webcam recording, and delivers AI-scored feedback.
Next.jsReactTypeScriptOpenAISupabaseClerk
//3
Castory
A full-stack SaaS platform enabling users to generate AI-narrated podcasts from trending news via a 5-step guided workflow using OpenAI.
Next.jsReactTypeScriptConvexOpenAIClerk
//4
DGWebsite
The official website for Developer Group @ NUS Computing, showcasing events, initiatives, and partner collaborations for a 2,300+ follower student tech community.
Next.jsReactTypeScriptTailwind CSS
JOURNEY
Experience
2021
IB Diploma — 45/45 (Top 1%)
International School of Kuala Lumpur
Achieved distinctions in Mathematics, Chemistry, Business, Economics, English, and Korean. Awarded IB Bilingual Diploma.
2021–2022
Double Honours in BBA & Economics
National University of Singapore
Foundational training in business administration and economics, with an emphasis on analytical thinking.
2022–2024
Signal & Computer Administration Specialist
Republic of Korea Army, 35th Infantry Division HQ
Managed IT and communication systems at Division HQ, supporting 120+ personnel. Maintained 40+ computer systems and network terminals.
2024
Transferred to Computer Science
National University of Singapore
Made an intentional pivot from Double Honours in BBA and Economics to Bachelor of Computing (Computer Science) to pursue technical specialization.
2025–2026
Developer Group @ NUS Computing
National University of Singapore
Head of Technology2026
Designed the organization website and organized Hack4Good 2026, a flagship hackathon for non-profit organizations.
Technology Associate2025
Contributed to a student-led tech community with 2,300+ followers.
2025–2026
Data Center Systems Intern
Lumcloon Energy
Authored a 46-page internal assessment on Ireland's LEU framework. Modeled grid capacity constraints for hyperscale deployment and identified a 73MW capacity deficit.
