She has worked as the script writer and director for many television documentaries such as "Infancia Rota" (broken childhood) for Documentos TV OF TVE (Spanish National Television). The programme won various prizes like that of the New York Television Festival, the silver award at the Hamburg Festival and the human rights prize from the General Council of Spanish Lawyers. "Somos lo que Comemos" (we are what we eat) for Documentos TV was nominated as best TV programme at Malaga’s International Biennale of Scientific Film. "Acciones, no palabras" (actions, not words) was filmed in the UN in New York and was shown on TVE’s La Noche Temática programme. She has also worked on other Documentos TV documentaries such as "Mi vida por 1000 euros" (my life for 1000 euros), "Hombres" (men), "El largo camino hacia el triunfo" (the long road to triumph) or "Madres Invisibles" (invisible mothers).

From 1994 to 1999 she was Communications officer in the Division for the Advancement of Women of the United Nations Secretariat in New York, DAW.

Here she worked on the organisation of the Fourth World Conference on Women in Beijing in 1995 and also on its monitoring processes. She was creator and coordinator of the collective initiative of UN organisations on equality: "Womenwatch.org". After this period, from Brussels she coordinated the Women’s Human Rights Network, an initiative that brought together a wide range of NGO’s from across the world to form a single international platform.

Five years ago, along with three other partners, Oliva set up her own production company with headquarters is in Chiclana, Cadiz. From here she develops her audiovisual projects.