Nelson leads the Global Sanctions Program Integration and Risk Management unit and is the Deputy Chief Sanctions Officer for Citi.  He is responsible for strategic design, planning and oversight of program-enhancing initiatives and regulatory remediation; primary regulator and internal audit interactions; issues and emerging risk management; program governance and policy-related initiatives; Sanctions regulatory inventory and change management; strategy for digital products and instant payments; sanctions training and communication processes.

The Program Integration and Risk Management unit plans and manages processes (including compliance infrastructure tools) and strategic initiatives to maintain and enhance the elements of the Programs in order to effectively eliminate, minimize or mitigate risk and comply with applicable compliance requirements.  This includes oversight of Program framework elements, execution of strategic plans and management reporting, in alignment with the overarching Independent Compliance Risk Management framework and Citi-wide risk and controls policies.

In 2013, Nelson re-joined Citi from Barclays, where he was the OFAC Compliance lead and Corporate and Investment Bank's Global lead for Sanctions, Anti-Bribery and Anti-Corruption.  Previously, between 1995 and 2009, Nelson held various in-house legal counsel and senior compliance positions in Citi Latin America and Global Compliance.

Nelson holds a Juris Doctor degree and a BS in Industrial Engineering from the University of Puerto Rico.