In May 2025, Alex refactored RDS secret storage in the localstack/moto repository to enhance security and maintainability. By migrating managed secrets to a structured JSON format with explicit username and password fields, Alex improved data organization and auditability. The update included expanding test coverage to validate the new JSON structure against the AWS backend, ensuring ongoing compatibility and reliability. This work leveraged Python and JSON, with a focus on backend development, AWS services, and robust testing practices. The depth of the refactor addressed both security and operational concerns, resulting in a more reliable and maintainable secret management process.