During January 2026, this developer focused on stabilizing and enhancing user flows across several HMRC frontends, including cds-reimbursement-claim-frontend, customs-declare-exports-frontend, and customs-manage-authorities-frontend. They removed a security feature flag to ensure consistent availability of the MissingPreferenceCertificate option, reducing edge-case risks. In customs-declare-exports-frontend, they introduced an optional container declaration, allowing users greater flexibility through a feature switch and corresponding UI updates. Additionally, they improved form structure and accessibility in customs-manage-authorities-frontend by reorganizing fields with fieldsets. Their work leveraged Scala, Play Framework, and HTML, emphasizing maintainable backend logic and accessible, user-friendly frontend experiences throughout the codebase.