I am a backend engineer who enjoys tackling new challenges. While I have not participated extensively, I continuously contribute to open source projects, striving to write clean, efficient, and maintainable code. My contributions to Spring Framework and Spring Data JPA reflect my focus on improving code readability, performance, and memory efficiency.
Beyond coding, I am passionate about fostering a positive developer culture. As a Google Developer Group on Campus (GDGoC) KNU, 5th term Organizer, I have organized community events, shared knowledge, and mentored other developers.
| No | Project | Contribution | PR | Role | Date |
|---|---|---|---|---|---|
| 1 | Spring Framework | Simplified FilteredIterator implementation by removing unnecessary else statements and streamlining if structures for improved readability |
PR #33902 | Contributor & Author | Nov 2024 |
| 2 | Spring Framework | Simplified spring-core utility implementation: added early returns, removed unnecessary else blocks, unified code formatting |
PR #33903 | Contributor & Author | Nov 2024 |
| 3 | Spring Framework | Optimized SockJsFrame#toString method: reduced repeated string creation from 2+ times to 1, fixed StringBuilder capacity to minimize memory allocation, improving GC efficiency and memory usage |
PR #35510 | Contributor & Author | Sep 2025 |
| 4 | Spring Data JPA | Improved parent lookup in recursive entity structure: replaced recursive calls (risking stack overflow) with while loop to traverse parent nodes, reducing stack usage and potential performance overhead |
PR #4025 | Contributor & Author | Sep 2025 |
| Description | Organization | Award | Date |
|---|---|---|---|
| 2023 Daegu-Gyeongbuk Public Data Hackathon | Software Education Center, Kyungpook National University | Grand Prize | Oct 2023 |
| 2023 Daegu Shining SW Hackathon | Kyungpook National University (Computer) | Grand Prize | Nov 2023 |
| 2024 Daegu Shining SW Hackathon | Kyungpook National University (Computer) | Grand Prize | Sep 2024 |
| KIPS Spring Integrated Conference | Korea Information Processing Society (KIPS) | Bronze Prize | Jun 2024 |
| KIPS Fall Integrated Conference | Korea Information Processing Society (KIPS) | Gold Prize | Nov 2024 |
| Daegu Regional Industry Performance Exchange | Daegu Digital Innovation Promotion Agency | Grand Prize | Nov 2024 |
| Daegu Industry-Academia Cooperation Project Contest | Daegu Digital Innovation Promotion Agency | Grand Prize | Nov 2024 |
| Open SW Development Portfolio Contest | Kyungpook National University (Computer) | Bronze Prize | Nov 2024 |
