During November 2024, Nixar Gh worked on the ClickHouse/yet-another-cloudwatch-exporter repository, focusing on improving the reliability of Prometheus metric exports. He addressed a bug in the metric name sanitization logic by updating the Go-based sanitize function to handle parentheses, ensuring that invalid metric names would no longer be generated. This targeted fix enhanced the quality of exported metrics and reduced alert noise for downstream dashboards and monitoring systems. Nixar demonstrated proficiency in Go, Prometheus, and cloud monitoring, applying careful edge-case handling to production code and contributing to the stability and correctness of the CloudWatch exporter’s data pipeline.