Worked on enhancing error visibility and release readiness in the linkedin/rest.li repository by improving server-side schema validation for REST APIs. Focused on the RestLiValidationFilter, the developer adjusted HTTP status codes to return 500 instead of 400 for invalid projections and missing projected fields, ensuring that schema-related issues are surfaced as server errors rather than client errors. This approach increased the reliability and observability of schema regressions. Collaborated closely on release preparation, including changelog and release notes for version 29.85.8. Utilized Java for backend development, REST API design, and unit testing to deliver targeted improvements in error handling.