Support front, middle, and back-office processes including reception and transmission of client orders, execution of orders, management of multilateral trading systems, custody and administration of financial instruments, and maintaining internal records. Ensure firm compliance with pre-trade and post-trade transparency obligations. Maintain procedures and systems for accurate and timely notifications to the CNMV. Ensure firm meets obligations for reference data on financial instruments. Verify compliance with Royal Decree-Law 21/2017 regarding systems, procedures, and mechanisms. Inform members or participants of the SMN/SOC of their responsibilities regarding settlement. Validate that Securitize has implemented measures for efficient settlement within the SMN/SOC. Comply promptly with CNMV instructions, including suspension of financial instruments from trading. Maintain five-year records for all orders and transactions executed within the SMN/SOC. Ensure the firm does not execute client orders using its own capital or engage in matched principal trading unless authorized. Prepare and deliver essential execution information to clients. Support Customer Service Area by validating customer onboarding data and account opening documentation. Apply and maintain operational controls related to customer categorization, suitability, conflict-of-interest management, best execution, and order processing. Manage telephonic and electronic communication procedures with clients, ensuring notifications of recordings and availability of recorded interactions.