Roisin is a Principal of Carne Cayman and has over 18 years' legal and regulatory experience in the investment funds industry. She trained and practiced as a solicitor with Linklaters in London from 1991 to 1996 before returning to the Cayman Islands, where she was an investment funds attorney until 2008.

Her most recent role prior to becoming a director was as a partner in the Cayman office of the international offshore law firm Mourant du Feu & Jeune, where her roles between 2005 and 2008 included head of the investment funds practice, head of the office, MLRO and head of corporate administration. Roisin also spent two years as the senior listing executive of the Cayman Islands Stock Exchange ("CSX") from 1998 to 2000 and continues to advise the CSX, both as a member of the listing committee and as a member of the board of directors of the CSX.

Roisin is a member of AIMA as an independent fund director, a member of the Cayman Islands Directors' Association and also a member of the board of the NCVO, a local charitable organization. Roisin is also a notary public. She graduated with a Bachelor of Laws (Hons.) from Nottingham University in 1990 and qualified as a solicitor in England and Wales in 1993, as well as an attorney-at-law in the Cayman Islands in 1996.