John-Yim's Portfolio

John Yim

Understanding the complexity of the world through AI, and designing better decisions.

AI Engineer

🏞️ I like quiet places—walking alone down country roads, getting lost in nature, or losing track of time while assembling tiny plastic parts into something real. There’s something grounding about making things with my hands, whether it’s a model kit, a pot of food, or a barely-working prototype. When something sparks my curiosity, I don’t read the whole manual—I just try it. That usually leads to broken stuff, better questions, and sometimes, real understanding. That’s how I learn: by doing, failing, and building again.

University: Sangji University
Major: B.E in Information & Communication Software Engineering
Academic Period: Mar. 2018 – Feb. 2024(incl. military service May. 2019 - Dec. 2020)
GPA: 3.94 / 4.5 (Completed Credits: 132)
Major GPA: 4.06 / 4.5 (Major Credits: 80)

Undergraduate Research Lab (U & I) — Jan. 2023 - Feb. 2024
Professional Training — AI SYSTEM DEVELOPMENT AND DATA ANALYSIS PROGRAM (Feb. 24 2025 - Aug. 06 2025 | Ongoing)
– Government-Funded training by HRD South Korea | 960 hours / 113 days

Category	Experienced With	Familiar With
Language	C/C++ Python	Java C#
Frontend	HTML PHP	JavaScript
Backend	MySQL Flask	JSP
Framework / Library	PyTorch Keras scikit-learn OpenCV	TensorFlow
Tools & IDE	VSCode PyCharm Jupyter Notebook Colab	Eclipse
DevOps / Infra	Git / GitHub	AWS EC2 Azure

Competition Entry (5 members) | Duration: May. 2025 – June. 2025

Detect and classify 206 species of wildlife sounds from 60-second recordings in natural habitats.

Launch Demo(Hugging Face) View Code (GitHub)

Personal Project | Duration: Mar. 2025 – Apr. 2025

Classifies user complaints by category and recommends relevant government agencies accordingly.

Launch Demo (Hugging Face) View Code (GitHub)

Capstone Project | Duration: Aug. 2023 – Nov. 2023

Built a deep learning model to classify the presence and type of brain tumor using MRI image data.

Launch Demo (Hugging Face) View Code (GitHub)

Top Award at Capstone Project, Dept. of Information & Communication Software Engineering (NOV. 2023)
Excellent Paper Award at 2023 Fall conference, Korea Institute of Convergence Signal Processing (DEC. 2023)
– ( View Paper )

Big Data Analysis Engineer
– National engineer-level technical license issued by Korea Data Agency.
Focuses on data preprocessing, statistical analysis, machine learning, and data-driven decision making.
Information Processing Engineer
– National engineer-level technical license issued by HRD Korea.
Covers software engineering, data structures, computer systems, and algorithmic problem-solving.
SQL Developer
– National certified private qualification issued by Korea Data Agency.
Assesses knowledge of relational databases, normalization, and advanced SQL query techniques.
Data Analysis Semi-Professional(DAsP)
– National certified private qualification issued by Korea Data Agency.
Focuses on exploratory data analysis, basic statistics, and data interpretation using visualization tools.
Network Administrator Level 2
– National certified private qualification issued by Korea Information and Communications Qualification Association.
Covers basic TCP/IP networking, routing, and system administration.