Worked on backend infrastructure for netbirdio/netbird and langfuse/langfuse, focusing on reliability and maintainability. In netbirdio/netbird, addressed a critical issue in the Signal Server by correcting context propagation, which improved the stability of message sending and stream handling. Enhanced code clarity through variable refactoring and strengthened error handling during peer registration and message forwarding, contributing to overall system robustness. In langfuse/langfuse, upgraded all Docker Compose configurations to use a Chainguard-maintained MinIO image, reducing dependency risk and improving deployment security. Utilized Go, Docker, and YAML, demonstrating skills in backend development, containerization, network programming, and DevOps practices.