Worked on the zendesk/maxwell repository to enhance schema migration reliability in Java-based backend systems. Addressed a race condition by making schema migrations concurrency-safe, specifically by ensuring that attempts to create already-existing tables no longer cause failures during multi-node deployments. This approach reduced deployment fragility and minimized the risk of rollbacks in concurrent environments. Added warning logs for schema inconsistencies, improving observability and aiding troubleshooting efforts. Validated these changes through targeted unit testing and deployment simulations, demonstrating improved system resilience. The work focused on backend development and concurrency control, ultimately lowering operator toil and streamlining incident resolution for production deployments.