Isaac Jang
About Me
Hello! I am Isaac Jang, a backend developer who is not afraid to learn new technologies and grow step by step every day.
My motto as a developer is to approach all tasks, big and small, with sincerity and a strong sense of responsibility.
Rather than simply writing code for functionality, I constantly learn and think about user empathy so that users can experience better services at every moment.
Education
University of New South Wales (UNSW Sydney)
Bachelor of Computer Science
2019.09 - 2023.05
Daegu Kyungsin High School
High School Diploma
2016.03 - 2019.02
- Autonomous Private High School
Projects
Trip Expenses Calculator
A web application that makes it easy to calculate and manage business trip expenses. Provides route search using Naver Map API, real-time fuel price lookup, and export functionality in various formats.
Holywood (Movie Finder System)
A web-based movie finder system that allows users to search for movies, add them to a wishlist, leave reviews, and receive recommendations based on their preferences.
Pedestrian Detection (Computer Vision)
A pedestrian detection system using computer vision technology that identifies and tracks pedestrians in real-time video streams.
Dungeon Mania (Java-based Game)
A Java-based program (game) that has one main character with several different Objects such as walls, bombs, portals, enemies and much more.
Flockr (Web-based Collaboration Platform)
Project 'Flockr' is a mock program of a service 'Flockr', a web-based collaboration platform.
Experience
Emson
Software Engineer
2025.09 - Current
- Participated in POSCO BUR HMI project, designing TCP server and entire data pipeline.
- Improved data collection timestamp accuracy by 99%, enhancing system precision.
AI Startup Academy
Prospective Entrepreneur
2025.07 - 2025.07
- Learnt how to utilize AI tools to create MVP
- Exercised building own Business Model, preparing IR Pitching
- Experienced team leading with various age ranges and background
Korean Airforce
Information Security Specialist(Staff Sergeant)
2023.09 - 2025.06
- Served in CERT(Computer Emergency Response Team)
- Managed Network System, Servers, Intranet(C4I) System
Programming tutor
Private / Contract
2023.04 - 2023.08
- web development tutoring using Python / Flask(Private)
- Finance Assistant application built with Python(Private)
- Basic Python lectures to automate workflow in company(Contract)
Blog
React UseEffect 안에서 함수 사용하기
React의 useEffect 훅 내에서 함수를 효율적으로 사용하는 방법.
React Event Listeners 관리하기 (feat. socket.io)
React에서 이벤트 리스너를 효과적으로 관리하는 방법과 socket.io와의 연동.
Java NullPointerException은 무엇이고 왜 뜨며 어떻게 예방할까
Java 개발에서 자주 마주치는 NullPointerException의 원인과 예방 방법.
Python 데이터 한글 깨짐 (feat. MySQL, Flask)
Python과 MySQL, Flask를 사용할 때 발생하는 한글 인코딩 문제와 해결 방법.
Skills
Language
Python
Javascript
Java
CFramework
FlaskDatabase
MySQL
PostgresqlAI Tools
Cursor
V0
Claude
ChatGPTOthers
React
REST API
Git & Github
Figma
Discord