| Board member of the Irish Research Council | |
| Member of the Institute of Directors in Ireland | |
| Member of the Helsinki Group | |
| Chair, Leader and proposal author for successful Athena SWAN and IOP Juno awards, TCD | |
| Member of Institute of Physics Juno management committee for the UK and Ireland evaluating and advising on best practice in gender and Physics | |
| Member of Finance Committee, TCD | |
| Member of Personnel and Appointments Committee, TCD | |
| Member of Governing Body Magdalen College Oxford | |
| Member of the Editorial Board, Review of Scientific Instruments | |
| Member of national committee for the UNESCO International Year of Light | |
| Member of Equality Committee, TCD | |
| Member of TCD Scientific Committee for the British Association Festival of Science | |
| Member of Program Committee SPIE European Conference on Biomedical Optics, Munich | |
| Member of Program Committee SPIE Opto Ireland Conference | |
| Member of Program Committee SPIE Photonics West, San Jose, USA | |
| Member of the Executive of Women in Technology and Science (WITS) | |
| Member of School of Physics Executive, TCD | |
| Member of INTEGER committee, TCD | |
| Member of Teaching and Learning Committee, TCD | |
| Member of Institute of Physics Women in Physics Group committee | |
| Member of Graduate Studies Committee, TCD | |
| Member of Catering Mannagement Committee, TCD | |
| Tutor, TCD | |
| Team leader for the International Union of Pure and Applied Physics (IUPAP) and the Royal Irish Academy for the Women in Physics initiative, Paris | |
| Former advisor to the Department of Education in Ireland |
Prof Eithne McCabe 