Mohit Joshi enhanced the Percona PostgreSQL ecosystem by expanding test coverage and stabilizing Transparent Data Encryption (TDE) features for partitioned tables. Working across the percona/pg_tde and percona/postgres repositories, he automated SQL-based tests for pg_tde_is_encrypted(), refined access control scenarios, and addressed permission alignment for non-superuser roles. His approach focused on database testing and partitioning, ensuring that TDE operations are validated under realistic access conditions. By increasing validation coverage and automating regression checks, Mohit reduced deployment risks and improved the reliability of TDE in production environments. His work demonstrated depth in SQL, PostgreSQL, and security-focused test automation.