Worked on enhancing database migration reliability for the navikt/pensjon-etterlatte-saksbehandling repository, focusing on safeguarding data integrity during upgrades. Addressed a critical bug by implementing a migration safety mechanism that blocks deployments if the SLUTTBEHANDLING record count does not match expectations, thereby preventing unsafe migrations. Updated Flyway from version V27 to V28 to maintain proper sequencing of database migrations and ensure smooth version control. Leveraged SQL and database migration skills to create traceable, auditable changes linked directly to specific commits. This work reduced deployment risks and established a more robust foundation for future database migrations within the service’s infrastructure.