Julián holds a Master of Science in Sociology (MSc) from the University of Oxford. He is also a lawyer specializing in Constitutional Law from the Universidad Nacional de Colombia. He has complementary studies on Economic, Social, Cultural, and Environmental Rights with the Universidad de Buenos Aires, and international protection of Indigenous Peoples, and Prior Consultation with the Inter-American Commission on Human Rights (IACHR). Among other activities, he collaborates as a researcher with the Plebio group of the Universidad Nacional and the Oxford Transitional Justice Research (OTJR) at the University of Oxford.

Julián has conducted fieldwork with indigenous and campesino communities in Colombia, as well as interdisciplinary research and litigation on issues of inequality and enforceability of social rights such as food and drinking water or on biocultural and indigenous peoples’ rights. In addition, he has actively accompanied the implementation of Ruling T-302  of 2017 of the Constitutional Court.

In Dejusticia, he is a researcher of the Economic Justice Line on issues of Business and Human Rights.