Backend engineer based in Korea. I care about reliability, performance, and observability in production systems.
- oh-my-openagent
- Pull Request (merged): Add comprehensive unit tests for the shared deep-merge utility (plain object detection, deep merge behavior, array replacement, unsafe key protection, max depth handling)
- Pull Request (merged): Fix background-agent model not persisting on resume by passing the stored model to preserve category config, and add tests for model persistence
- Pull Request (merged): Fix empty message recovery when tool calls coexist with empty text parts
- Pull Request (merged): Fix missing load_skills parameter in hook-injected delegate_task examples
- Pull Request (closed): Fix category config temperature/maxTokens/top_p not applied to spawned agents
- Building resilient backend services with clear boundaries and predictable behavior
- Improving test quality to prevent regressions in shared utilities and core logic
- Performance and failure-mode thinking (timeouts, throttling, backpressure, monitoring)
- Java, Spring Boot, JPA, Python, TypeScript
- Kubernetes, AWS
- Monitoring: VisualVM, Prometheus, Grafana
- Email: leewoojin98@naver.com
- Want to chat over coffee sometime? Feel free to email me.