Florian Delemarre contributed to the OpenCTI-Platform by developing both frontend and backend features that enhanced user experience and data integrity. On the opencti repository, he built a System Entity Enrichment Call-to-Action component in React and TypeScript, gated by user permissions and feature flags, and refactored relationship management to ensure immediate data updates, improving responsiveness and accuracy. In the client-python repository, Florian introduced explicit validation control for STIX2 bundle submissions by adding a force_validation parameter, using Python to provide flexible data validation workflows. His work demonstrated depth in API integration, data validation, and full-stack development across complex enterprise scenarios.