Justina joined the business in 2015 to help strengthen its corporate governance. Starting her career in retail banking at NatWest, Justina then moved into healthcare administration, working at the South London and Maudsley NHS Trust. Before joining OSTC, she was deputy board secretary of Lewisham and Greenwich NHS Trust in London. Justina is an associate member of the Institute of Chartered Secretaries and Administrators (ICSA), gaining chartered status in early 2018, and an apprentice member of the Worshipful Company of Chartered Secretaries and Administrators (WCCSA), a livery company of the City of London.