Developed SSL/TLS support for PostgreSQL connections in the argotorg/sourcify repository, enabling encrypted data transmission and certificate verification to enhance security. The implementation introduced environment variable-driven toggles, allowing flexible activation of SSL and control over certificate validation through SOURCIFY_POSTGRES_SSL and SOURCIFY_POSTGRES_SSL_REJECT_UNAUTHORIZED. Leveraged Node.js for backend integration and applied both JavaScript and TypeScript to ensure robust, maintainable code. Maintained high code quality by performing linting and Prettier formatting, supporting clean builds and deployment readiness. The work focused on backend infrastructure, strengthening data security in transit and laying groundwork for future security enhancements without introducing customer-facing defects.