Oosterman has contributed to various magazines and architecture platforms, participated in international conferences and taught architectural history at several institutions in The Netherlands including The Academy of Architecture Amsterdam, The Academy of Architecture Groningen and Utrecht Graduate School of Visual Art and Design. He has written numerous essays and edited several books on contemporary Dutch architects and architecture. Recent publications and articles include; Housing in the Netherlands: Exemplary Architecture of the Nineties (1997), New Forms of Involvement Five Contributions on Architecture and Urban Politics, Open, issue no.15 (2008) and The African city center and its future// A report from the African Perspectives conference in Pretoria, South Africa (2009). Oosterman was one of the jury members of Archiprix, 2009, co-organised the Architecture of Peace conference in Rotterdam, 2010, and co-curated an exhibition on the Dutch architect Jos. Bedaux, Tilburg, 2010. Oosterman lives and works in the Greater Amsterdam Area.