Worked on enhancing reliability and observability for the mezonai/mmn-tx-explorer repository by implementing an initial systemd watchdog integration using Go. Developed readiness notifications and periodic heartbeats to improve service monitoring under systemd, focusing on backend development and systemd integration best practices. After thorough evaluation, the integration was rolled back to maintain production stability, demonstrating a disciplined approach to change management and rollback planning. All decisions and technical rationale were clearly documented to support future iterations. This work reflected a careful balance between introducing new reliability features and preserving operational stability, while deepening expertise in Go and backend system integration.