Kakao Tech Campus, 3rd Cohort (Backend)

Kakao Tech Campus is a backend-focused training program led by Kakao. The program consisted of three stages, covering backend fundamentals, code review, service API development, and end-to-end service development.

In the first and second stages, I learned backend development practices through lectures and code reviews from Kakao developers while implementing a Kakao Gift service API clone.

In the third stage, our team planned and developed UniSchedule, a university schedule management service, from the initial idea to implementation. I served as the Backend Tech Leader and led backend architecture decisions, code reviews, technical coordination, deployment planning, and performance validation.

Key Contributions

• Completed a three-stage backend training program led by Kakao
• Learned backend development practices through lectures and code reviews from Kakao developers
• Implemented a Kakao Gift service API clone during the first and second stages
• Participated in end-to-end service development by planning and implementing UniSchedule from the initial idea
• Served as Backend Tech Leader for a 4-person backend team in the final project
• Led backend architecture decisions, code reviews, and technical coordination
• Designed a multi-instance backend deployment environment using AWS ECS/Fargate and ALB
• Applied Redis Pub/Sub to resolve message delivery issues in a distributed chat environment
• Conducted load testing with JMeter to validate concurrency handling (+ Auto Scaling Test)
• Received the Excellence Award in the final project

Training Process

• Stage 1–2: Backend Training & API Clone

  During the first and second stages, I implemented a Kakao Gift service API clone while receiving lectures and code reviews from Kakao developers.

  

  Through this process, I practiced Spring Boot, JPA, API design, authentication, and code quality improvement. The code review process helped me learn how to improve implementation details, structure backend code more clearly, and think about maintainability from a practical perspective.

  

• Stage 3: End-to-End Service Development – UniSchedule

  In the final stage, our team planned and developed UniSchedule, a university schedule management service, from the initial service idea to implementation.

  As the Backend Tech Leader, I led backend architecture decisions, reviewed code, coordinated technical decisions within the backend team, and contributed to deployment planning and performance validation.

  https://github.com/kakao-tech-campus-3rd-step3/Team12_FE

  https://github.com/kakao-tech-campus-3rd-step3/Team12_BE

  • UniSchedule Demo Video

  부산대 3팀 이음새 시연 영상.mp4