Key Activities & Projects

Mar 2026 - Present · Student Researcher

• Maintained, developed, and handled operational issues for Code Place, Pusan National University’s official online judge platform used by about 800 users.
• Integrated a vLLM-based AI hint assistant and improved operational visibility with Sentry and Grafana LGTM metrics, logs, traces, and alerts.
• Supported failure diagnosis in a multi-node k3s environment by analyzing Kubernetes resources, service logs, and Longhorn storage state together.

Apr 2025 - Nov 2025 · Trainee, Backend Tech Leader

• Completed Kakao’s backend program focused on Spring Boot, JPA, system design, and code reviews from working engineers.
• Served as Backend Tech Leader for the 4-person UniSchedule backend team, leading architecture, code reviews, ADR-based decisions, and communication.
• Applied Redis Pub/Sub messaging, AWS ECS/Fargate with ALB autoscaling, and JMeter load testing, then won 2nd place in the final project.

Mar 2025 - Feb 2026 · Backend Mentor, Developer

• Planned and ran backend study sessions for new members, mentoring API design, server structure, and implementation direction.
• Served as team lead and backend developer for the 6-person OnGi team, translating planning, design, and frontend needs into implementation scope and priorities.
• Built GitHub Actions and GCP Cloud Run CI/CD, and won a hackathon award for cross-functional communication and service completeness.

Sep 2024 - Aug 2025 · Computer Vision Study Member

• Studied image classification, feature extraction, and Vision-Language Models in a regular computer vision study group, and won 3rd place at the 2024 PNU CSE Ideathon.
• Worked on VLM-based zero-shot scene classification under constraints where target-class training and fine-tuning were limited.
• Compared and analyzed model outputs to improve classification direction, ranking 1st on both public and private scores and winning the Ajou University President’s Award.