Yunseong Jeong
writes Java, C# and Python
I'm a developer who cares about well-structured code and good software design. I'm especially interested in building solid architecture by combining theory and hands-on experience.
- repos
- 29 public
- commits
- 12,171 past year
- github
- github.com/
dev-yunseong
Projects
Icloud Mail Mcp
Python prototype for read‑only iCloud IMAP access with offline fixtures.
- language
- Python
- updated
- Oct 19 2026
Problem Solving
Java repository for problem solving practice and solutions.
- language
- Java
- updated
- Oct 24 2026
- --More--
Harbor Shift
JavaScript tool for blue‑green Docker deployments with graceful draining and rollback.
- language
- JavaScript
- updated
- Oct 22 2026
Personal Website
Java 21 Spring Boot site with Thymeleaf, PostgreSQL, and S3 storage for blogging and portfolio.
- language
- Java
- updated
- Nov 3 2026
- live
- yunseong.dev
More projects
| name | about | lang | modified |
|---|---|---|---|
| Agent Sessions | Python module for managing agent session state. | Python | Aug 27 2026 |
| Dev Yunseong | Placeholder repository for developer's personal projects. | - | Aug 21 2026 |
| API Limit Mvc | Spring MVC 환경에서 API 요청 횟수를 효율적으로 제한할 수 있게 도와주는 라이브러리 | Java | Aug 14 2026 |
| API Limit Webflux | Spring WebFlux 환경에서 API 요청 횟수를 효율적으로 제한할 수 있게 도와주는 라이브러리 | Kotlin | Aug 14 2026 |
| Pushback | - | - | Jul 13 2026 |
| Server Watchdoglive | A server monitoring and remote control tool via messenger. | Rust | Apr 4 2026 |
| Struct Inputlive | A Rust crate for easy CLI input mapping to structs. | Rust | Mar 11 2026 |
| Qi4u Mr2s | - | - | Feb 26 2026 |
| Study Spring Security | - | Java | Jun 27 2025 |
| Be No2 Assignment | Kakao Tech Campus Assignment | Java | May 21 2025 |
| Be No1 Assignment | Kakao Tech Campus, BE, No1. assignment | Java | May 2 2025 |
| Sliding Puzzle | Sliding Puzzle Game with Unity | C# | Feb 12 2025 |
Skills
Languages
- C1 repo
- C#3 reposSliding Puzzle
- C++1 repo
- HTML1 repo
- Java9 reposProblem Solving Personal Website API Limit Mvc +3
- JavaScript2 reposHarbor Shift
- Jupyter Notebook1 repo
- Kotlin1 repoAPI Limit Webflux
- Python3 reposIcloud Mail Mcp .agents Agent Sessions
- Rust2 reposServer Watchdog Struct Input
- Shell2 reposDev Tool
Activity
12,171 contributions in the last year
- contributions
- 12,171
- active days
- 328 / 365
- longest streak
- 42 days
- best week
- 942
Repositories by language
- Java9 repos
- C#3 repos
- Python3 repos
- JavaScript2 repos
- Rust2 repos
- Shell2 repos
Contact
To: Yunseong Jeong
- githubgithub.com/
dev-yunseong
Replies go to the address you leave.