Worked on the percona/percona-server-mongodb-operator repository to address stability issues in Kubernetes environments with read-only root filesystems. Developed and integrated a shared writable /tmp emptyDir volume, enabling mongod and backup-agent containers to function correctly when the root filesystem is set to read-only. This solution was gated behind crVersion 1.23.0 to ensure controlled rollout and minimize risk. Updated end-to-end tests to validate the new volume injection and related scenarios, ensuring robust verification. Utilized Go for backend development, leveraging Kubernetes primitives and YAML configuration to automate deployment and testing, ultimately improving reliability for backup and startup workflows.