Worked on the PAS_DB repository to deliver three new database features focused on data traceability, security, and retrieval efficiency. Enhanced inspection traceability by adding a verification column to key audit tables, supporting improved audit processes. Strengthened email integration security by introducing ClientId, TenantId, and ClientSecret parameters to both stored procedures and the underlying schema, enabling more secure credential management. Improved sales quoting and order workflows by extending a stored procedure to include module-level detail for stock line retrieval. Leveraged SQL, database design, and stored procedures to implement these changes, with ongoing QA confirming stability and no major bugs reported.