Filip Larsen enhanced both frontend and backend systems across the navikt/tilleggsstonader-sak-frontend and navikt/tilleggsstonader-sak repositories during April 2025. He improved the calculation table’s period display by refactoring date labels and formatting, which clarified UI presentation for users. On the backend, Filip introduced metadata capture for NYE_OPPLYSNINGER treatments, adding database fields to support better traceability and data governance. His work leveraged Kotlin, React, and SQL, demonstrating proficiency in both backend development and database management. The features addressed reporting and compliance needs, and the changes were release-ready, reflecting a focused, well-scoped approach to cross-repository feature delivery.