Joshua worked on the percona/percona-postgresql-operator repository, focusing on improving client-side throttling stability in the Go-based client. He addressed a bug that caused inconsistent throttling behavior across different client configurations by replacing explicit QPS settings with a fake rate limiter, ensuring predictable performance in multi-tenant and large-scale Kubernetes deployments. This solution required a deep understanding of Go, Kubernetes operator patterns, and API development, as it directly modified the rate limiting logic within a critical component. Joshua’s work, merged under K8SPG-743, demonstrated careful attention to deployment reliability and cross-functional collaboration with QA and CI teams during the release process.