As a member of the Regulatory Enforcement practice group, Youmi represents Dutch and multinational clients in regulatory and criminal matters involving anti-bribery and anti-corruption (ABAC), fraud, anti-competition, ethics and corporate social responsibility. Youmi is currently heading De Brauw's Shanghai office.

Youmi has experience in internal investigations in Asia, Latin America, Europe, and the Middle East. She also handles international coordination and client representation in cross-border enforcement matters involving multiple regulators, and advises on various related issues such as market disclosures, press relations, and risk mitigation measures. Youmi has assisted companies in reviewing their internal controls and broader compliance programmes, and designing improvement plans for review or approval by regulators.

Between 2021 and 2022, Youmi was seconded to the New York office of Cravath, Swaine & Moore LLP.