Roman Matsuiev developed the Unclaimed Development Fund Coupons Listing feature for the hyperledger-labs/splice repository, focusing on backend and API development using Scala. He updated the scan proxy logic and API surface to support listing unclaimed development fund coupons, addressing the need for improved visibility and governance oversight. Roman implemented robust integration tests to validate the end-to-end flow, enhancing test coverage and reliability. His work aligned with CIP-82 guidelines and project QA standards, with all contributions signed off for review. The feature reduced manual reconciliation efforts and streamlined response handling, demonstrating depth in integration testing and backend system design.