Competitive Programmer Β· CS Educator Β· Open Source Contributor
B.S. in Computer Science @ National Cheng Kung University (NCKU)
- π Admitted to NCKU CSIE via the Special Talent Recruitment Program (Competitive Programming Category), 2022 β 2026 (expected).
- π§ Familiar with Competitive Programming, Algorithms, Data Structures.
- π± Currently digging into Compilers, Database Systems, and Distributed/Parallel Computing.
- π οΈ Side projects ranging from Online Judge backends to POS & analytics systems.
- π« Reach me at f74114744@gs.ncku.edu.tw
Active contributor to Apache Airflow and its ecosystem (apache/airflow, apache/airflow-site, β¦) β shipping bug fixes and small well-scoped patches upstream.
π I enjoy reading large-scale codebases and shipping small, well-scoped patches upstream β most of my recent activity has been around Apache Airflow's core scheduler and providers.
| Year | Contest | Result |
|---|---|---|
| 2025 | ICPC Asia Taiwan Online Programming Contest (TOPC) | Silver Medal Award β 31 / 228 |
| 2024 | ICPC Asia Taichung Regional Programming Contest | Bronze Medal Award β 43 / 110 |
| 2024 | ICPC Asia Taiwan Online Programming Contest (TOPC) | Silver Medal Award β 37 / 294 |
| 2024 | National Collegiate Programming Contest (NCPC) Final | Honorable Mention β 25 / 152 |
| 2023 | HPE / HPI / INTEL Codewars | 6th Place |
| 2022 | ICPC Asia Taoyuan Regional Programming Contest | Bronze Medal Award β 42 / 100 |
NCKU CSIE Teaching Assistant
- Programming (I) β 2023 β 2025 (3 terms)
- Programming (II) β 2023 β 2024 (2 terms)
- Windows Programming β 2024 β 2025 (2 terms)
- Compilers β 2023 β 2024 (2 terms; revised & updated assignments)
- Data Structures β 2024 β 2025 (2 terms)
- Multiprocessor Parallel Programming β 2025 (revised & updated assignments)
- Introduction to Computer Science (Dept. of Urban Planning / Dept. of Biotechnology) β 2025
Contest Organization
- Co-organized the 9th β 11th NCKU High School Programming Invitational Contest (problem setting & operations).
- Founder of NHDK, a programming contest platform for beginners.
Lecturer
- Algorithm & C++ Lecturer at Tainan Girls' Senior High School, Chia-Yi Girls', Hsin-Hua Senior High Programming Camps, Pumen Senior High, and more.
- 2023 Sprout Problem Solving β Project Manager & Lecturer.
- γNHDK Γ SCISTγ2023 Algorithm Winter Camp Lecturer.
Campus
- General Coordinator, 17th NCKU Bike Festival β led the executive committee for an event with 10,000+ participants.
| Project | Stack | Description |
|---|---|---|
| Hybrid Ant Colony Algorithm for k-MST (Graduation Project) | Heuristic Optimization | Researched the k-th smallest spanning tree problem with a hybrid ant colony approach. |
| Modern Online Judge System (NCKU OJ) | Docker Β· PostgreSQL Β· Redis Β· Celery Β· Python | Scalable OJ backend with async task processing and Docker-based code-execution sandboxing. |
| Turkey Rice POS & Analytics System | FastAPI Β· React Β· TypeScript Β· PostgreSQL | End-to-end POS with customizable meal options and a sales / inventory analytics dashboard. |
| KFC Best Deal Calculator | Spring Boot Β· Dynamic Programming | DP-based optimization engine that finds the most cost-effective meal combinations. |
- π§ f74114744@gs.ncku.edu.tw γ» jun930436@gmail.com
- πΌ linkedin.com/in/jyun-an-chen
- π github.com/ColtenOuO
Always happy to chat about competitive programming, compilers, or open source. β¨