AI Server Developer based in Seoul, South Korea (🇰🇷)

🔗 LinkedIn | 🐙 GitHub

Server Developer
Backend Engineer focused on building robust service pipelines and optimizing architecture.
Passionate about "Foundation Platforms" that support high-performance AI services.

Server Developer Intern (AI Platform Server) | Dec. 2025 – Jun. 2026

• Role: Developing backend systems for the Multimedia Design Division, focusing on AI service serving and foundation platforms.
• API & Pipeline: Designed and implemented RESTful APIs for AI model serving, ensuring scalability and stability under high traffic.
• RAG Optimization: Contributed to optimizing Retrieval-Augmented Generation (RAG) pipelines and tuning DB/Cache performance to minimize latency.
• Collaboration: Collaborated with cross-functional teams to integrate LLM agents into the service architecture.

Blockchain Research Assistant & Community Manager | Jun. 2023 – Sep. 2023

• Role: Supported the expansion of the Klaytn ecosystem through technical research and community engagement.
• Market Research: Conducted in-depth analysis of blockchain trends, DeFi protocols, and dApp landscapes to provide actionable insights for the team.
• Ecosystem Growth: Managed the Klaytn community, facilitating technical discussions and organizing events to foster ecosystem development and user engagement.

Server Developer | Dec. 2025 – Present (In Progress)
Enterprise GenAI Asset Creation Platform

• GenAI Architecture: Developing a centralized API gateway to integrate various Generative AI models for internal IP creation (Image, Video, 3D assets).
• Performance Tuning: Optimizing database queries for spatial and metadata search by implementing PostgreSQL Indexing strategies (considering PostGIS for R-tree spatial indexing).
• Concurrency: Resolving Server-Sent Events (SSE) connection bottlenecks by adopting a multi-worker architecture, ensuring stable streaming for 30-50 concurrent generation tasks.
• Refactoring: Leading the backend code restructuring and improving the authentication logic for scalability.

Server Lead & DevOps | Jul. 2025 – Present
Custom Subscription App for the Visually Impaired

• Infrastructure: Designed a High-Availability (Multi-AZ) architecture on AWS, decoupling heavy crawling workloads using Fargate to isolate server load.
• CI/CD: Established an automated deployment pipeline using GitHub Actions and Docker, enabling consistent build environments and zero-downtime deployment.
• Stability: Implemented a robust error handling strategy with Base Exception layers to strictly manage runtime validation.

Server Developer | Jul. 2025 – Dec. 2025
Habit Management Service

• Security: Overcame stateless JWT limitations by implementing Refresh Token Rotation and a Redis-based Blacklist system to handle secure logouts and prevent token theft.
• Auth System: Built a hybrid authentication flow supporting both standard login and OAuth 2.0, verifying tokens server-side for enhanced security.

Dongguk University | Seoul, South Korea College of Advanced Convergence | Mar. 2021 – Present

• Major: Computer Science
• Major GPA: 4.1 / 4.5
• GPA: 3.91 / 4.5

• 2nd Place, XTON Hackathon, Dongguk University SW Education Center Director's Award (2025)

• 2nd Place, DU Idea Challenge Competition, Dongguk University President's Award (2025)

• 3rd Place, Hyundai Autoever App Development Contest, Green Light Association President Award (Jun. 2025 ~ Feb. 2026)

• 4th Place, Hyundai Autoever App Development Contest, to be selected (Jun. 2025 ~ Feb. 2026)

• Gopax Guardians (Blockchain Education Supporter) | Jul. 2023 – Dec. 2023

• UMC (University MakeUs Challenge) - Challenger (8th) & Server Part | Mar. 2025 – Aug. 2025

• UMC (University MakeUs Challenge) - Vice President (9th) & Server Part | Sep. 2025 – Feb. 2026

• UMC (University MakeUs Challenge) - Server Part Leader (10th) & Server Part | Feb. 2026 – Present

   

     

   

           

• Guideline of STO (2023)
• About Friend.tech (2023)