Nelson is Head of the Program Integration and Risk Management unit for Anti-Bribery and Sanctions Compliance and Deputy to the Global Head of Anti-Bribery and Sanctions (2013 – present).  He is responsible for the strategic design, planning and oversight of program-enhancing initiatives; primary regulator and internal audit interactions; issues and emerging risk management; program governance, policy-related initiatives, as well as training and communication processes covering the firm-wide Global Anti-Bribery and Sanctions compliance programs. 

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

Nelson holds degrees in Law and Industrial Engineering.