Sealy-Thompson graduated from Manchester University in 2001 with a double honors degree in Modern Foreign Languages - French, Spanish and Portuguese.

Her research explores the links between the women in politics and performing arts across three locations: Barbados, the Bay Area and Brazil.

[3] For this work she won the Michael Mansfield and Randy Sweringen Social Justice Award for ‘Artistic Excellence in Creating a More Equitable and Inclusive World’ Ambassadorial career At the time of her appointment, Sealy-Thompson was Barbados' youngest woman ambassador at the age of 42.

[3] In 2019, she visited Bahia state to explore connections between it and Barbados, particularly in relation to the shared heritage of the Black population in both places.

[8] She founded the annual Fish & Dragon Festival, a cooperation project between the governments of Barbados and the People's Republic of China, where the first two editions were held in Bridgetown 2015 and 2016 under her direct management and from 2016 - 2019 under the supervision of other directors.