2011-02 - International Director, Promundo-US.

2009 to 2011 - Director - Gender, Violence and Rights The International Center for Research on Women

2007 - Co-founder and Co-chair, MenEngage Alliance, a global network for engaging men and boys in gender equality

1999 to 2009 - Founder and Executive Director, Instituto Promundo, Rio de Janeiro, Brazil

1995 to 1998 - Research Associate and International Fellow, Chapin Hall Center for Children at the University of Chicago

1993 to 1995 - Coordinator, Research and Evaluation, Centro de Educação Sexual (Center for Sex Education), Rio de Janeiro, Brazil.

1992 to 1993 - Regional Director for Latin America, Advocates for Youth, Bogotá, Colombia.

1989 to 1992 - Director, International Projects, Advocates for Youth, Washington, D.C.

1988 to 1989 - International Programs Advisor, Population Resource Center, Washington, D.C.

1986 to 1988 - Youth Development Specialist, Peace Corps Honduras.

Other Activities

2016 - Board member, Center for Health and Gender Equity (CHANGE), Washington,

2015 - Expert commissioner to the Guttmacher-Lancet Commission on Sexual and Reproductive Health and Rights

2015 - Member, organizing committee and scientific committee, Sexual Violence Research Initiative (SVRI), Stellenbosch, South Africa

2015 - Member, organizing committee, V Coloquio Internacional de Estudios sobre Varones y Masculinidades, Santiago, Chile

2015 - Organizer, The International Conference on Masculinities: Engaging Men and Boys for Gender Equality, New York, USA

2014 - Board member, Center for the Study on Men and Masculinities, State University of New York-Stonybrook, New York, USA

2013 to 2015 - Member of the Technical Advisory Group, Gender Cluster, the World Bank, Washington, DC, USA

2013 - Member, organizing committee and scientific committee, Sexual Violence Research Initiative (SVRI), Bangkok, Thailand

2011-03 to 2011-11 - Evaluation Consultant, Child Labor Eradication Program, International Labour Office, Brasilia, Brazil

2011 to 2015 - Co-chair of the Coordinating Committee, Sexual Violence Research Initiative (SVRI), Medical Research Council, South Africa

2011 - Advisor and Consultant on Men and Masculinities for the 2012 World Development Report, World Bank

2011 - Member, organizing committee and scientific committee, Sexual Violence Research Initiative (SVRI), Cape Town, South Africa

2011 - Present: Member of Clinton Global Initiative

2009 - Present: Member of the UN Secretary General´s Men´s Leaders Network

2007 to 2010 - Fellow, Ashoka - Innovators for the Public. Three-year fellowship to support social entreprenuers awarded to leaders in social development worldwide

2007 - Co-founder and Co-chair, MenEngage Alliance, a global network for engaging men and boys in gender equality

2003 to 2005 - Consultant and Lead Author, Regional Study on Young Men, Masculinity and Conflict in sub-Saharan Africa, World Bank. 2003-2005.

2002-02 to 2003-01 - Consultant on Men and Masculinities, World Bank, Washington, DC.

1999-12 to 2000-02 - Advocacy Consultant, 2000 World AIDS Campaign on Men and Boys, UNAIDS, Geneva.

1998 to 2002 - Collaborating Researcher, Center for Research on Childhood (CESPI), Santa Ursula University, Rio de Janeiro

1996-12 to 1998-07 - Male Involvement Consultant, Ounce of Prevention Fund, Chicago

1996-06 to 1998-09 - Research Consultant, Men as Partners Initiative, EngenderHealth, New York.

1996-06 to 1996-07 - Sexuality Education Curriculum Design Consultant, Center for Communication Programs, School of Hygiene and Public Health, Johns Hopkins University, Mexico City.

1995 to 1999 - Consultant on Male Involvement, The John D. and Catherine T. MacArthur Foundation, Population Program. Various assignments.

1995 to 1998 - Consultant, Colombia Youth and Child Development Project, The World Bank, Bogotá and Washington, D.C.

1994-01 to 1994-03 - Consultant, Adolescent Health Strategies, International Projects Assistance Services, USA. January 1994-March 1994.

1994 to 1995 - Lead Consultant, At-Risk Youth Project, United Nations Office on Drugs and Crime (UNODC), Caribbean Region, Angola and Ecuador.

1993-10 to 1994-02 - Technical Advisor, At-Risk/Street Youth Project, U.S. Agency for International Development/Brazil.

1993-09 to 1993-12 - Technical Advisor, AIDS and Drug Abuse Prevention Project, United Nations Office and Drugs and Crime (UNODC), Brasilía, Brazil

1993-03 to 1993-05 - Technical Advisor, Street Children Support Project, U.S. Agency for International Development/Guatemala.

1992-07 to 1993-03 - Management Adviser, Asociación Salud con Prevención, Bogotá, Colombia.

1992-02 - Program Design Consultant, Peace Corps Ecuador.

1991 to 1992 - Advocacy Consultant, CHILDHOPE International, New York.

1991 to 1992 - Research Consultant on Young Women in At-Risk Situations, UNICEF, Children in Especially Difficult Circumstances Office, New York

1988-11 - Evaluation Consultant, Peace Corps Honduras

1988-06 - Consultant, Adolescent Males, Health and Development, World Health Organization, Adolescent Health and Development Programme, Geneva.

1988-05 to 1988-07 - Youth Development Consultant, Peace Corps, Office of Training and Program Support, Washington, D.C

1985-06 to 1985-08 - Legislative Intern, Child Welfare League of America, Washington, D.C.

1984-05 to 1984-08 - Policy Analyst Intern, Texas Department of Human Resources, Child Protective Services Division, Austin, TX.