Adam Quigley enhanced observability in the solrbot/apache-_-solr repository by migrating the Solr AuditLoggerPlugin’s metrics collection from Codahale to OpenTelemetry. He implemented OTEL counters, timers, and histograms, updating metric registration and attribute handling to provide richer, more granular monitoring within Solr’s metrics system. Using Java and leveraging his backend development expertise, Adam delivered a core changeset that laid the foundation for improved monitoring, alerting, and performance analysis of audit logging workflows. His work focused on backend metrics and observability, addressing the need for modernized, extensible telemetry in Solr without introducing new bugs, demonstrating depth in technical execution.