[1][2] Before and after his graduate schooling at McGill University, Worrell worked as an economist at the Central Bank of Barbados from 1973 to 1998, during which time he founded its Research Department.

As IMF technical adviser, his work focused on monetary policy, financial stability, and stress testing in countries in Europe, Asia, Africa and the Caribbean.

[2] In November 2009, Barbadian Prime Minister David Thompson recruited Worrell back into the Central Bank of Barbados and promptly appointed him to its top leadership.

[4] In March 2017, he was removed from the post, as a result of disagreement with Finance Minister Chris Sinckler and the board of the Central Bank of Barbados.

[9] In June 2018, he was appointed a Member of the Financial Policy Council of the Bermuda Monetary Authority, a post which he continues to hold.

[10] More recently, he co-chaired the Financial Stability Board's Regional Consultative Group, Americas (RCG-A), alongside Carolyn Wilkins, senior deputy governor of the Central Bank of Barbados .