Mary has extensive experience working in organisations in the statutory and voluntary sector. Her background is in social work, addiction, management and education. She held key positions in the Probation Service, Drug Treatment Centre, Merchants Quay Ireland and Dublin AIDS Alliance.
She completed her initial training in Motivational Interviewing in Tarragona in 1999 and is a keen advocate of Motivational Interviewing which she has practised in a variety of settings over 20 years
In 2011 she set up O'Shea Consulting specialising in addiction, family law, group and individual supervision, training and mediation. She also holds a part time position as Practice Tutor on the Master programme in Social Work (MSW) in University College, Dublin.
She is an accrediated counsellor and supervisor with ACI (Addiction Counsellors of Ireland) and on the panel of supervisors with IASW (Irish Association of Social Workers) She is also registered with CORU (Regulating Health & Social Care Professionals) and is a certified member of MII (Mediation institute of Ireland).