Backend developer focused on building reliable services with Spring Boot, database design, and practical deployment.
I enjoy designing APIs, structuring backend systems, and solving problems through data and logic.
Currently learning more about backend architecture, database optimization, and AI-based services.
- Backend developer interested in Spring Boot and database-driven services
- Experience building REST APIs and deploying services
- Interested in AI, data analysis, and intelligent service systems
- Continuously improving CS fundamentals and algorithm skills
- Java
- Spring Boot
- MyBatis
- JPA
- REST API
- MySQL
- PostgreSQL
- SQL
- AWS EC2
- AWS RDS
- Docker
- Redis
- Git / GitHub
- Python
- React
Backend development for a refrigerator food management service.
- Implemented member, notification, and food management APIs
- Designed database schema and handled backend logic
- Experienced service deployment on AWS
Backend project for exploring and managing benefit information.
- Built REST APIs using Spring Boot + MyBatis
- Designed relational database schema
- Implemented backend service logic and data flow
An AI Tamagotchi service where a virtual pet evolves through conversation with users.
- Designed domain structure for conversation-based interaction
- Implemented backend logic for AI communication
- Focused on user interaction and service concept
- IT-Cotato development club
- Spring / Kotlin study group
- Team projects and hackathon participation
- Continuous learning in CS and algorithms
- Backend architecture design
- Database optimization
- Scalable service structure
- AI-based service integration
- GitHub: https://github.com/ljh8450
- Email: ljh8450@ajou.ac.kr