Olivier is a conflict transformation practitioner, specialized in the field of political psychology of conflict. He received training in transformative mediation, psychodrama and nonviolent communication. His work is centered around connecting the policy level and the grassroots level to facilitate a more coordinated and stronger integrated approach to conflict transformation, emphasizing hereby on the aspects of research, perception, psychology and mediation. Besides his working experience at the European Parliament, he has also been involved in research projects and mediation dialogues related to international conflicts. As co-director at the European Platform of Middle East Dialogue, he brings local perspectives of conflict dynamics from the Middle Eastern region to European policy-making circles to faciliate better informed decision-making processes. At the grassroots level, he spent some time with local peace-makers in Israel-Palestine, Northern Ireland, Turkey, Lebanon and Jordan and conducted psychosocial workshops with Syrian refugee children through Project Amal ou Salam.