Currently, Jasteena is lecturing at University of Windsor Law School in International Human Rights Law. In 2010, she held a Visiting Scholar position at Harvard Law School and an Affiliate Fellow position with Harvard's South Asia Initiative, Previously she was an Associate Fellow at Harvard's Kennedy School of Government. At Harvard and now, Jasteena does research, teaching and writing on justice and rule of law, informal and formal justice systems in conflict, post-conflict and transitional countries and regions.

Jasteena Dhillon attended University of Toronto in majoring in History/Sociology and Anthropology completing that in 1990, then University of Windsor Law School completing a LL.B/JD in 1995. She also completed a LL.M/Masters of Law in Public International law from Leiden University in the Netherlands in 1999.

Her work in Canada from 1989 - 1999 was based in Toronto and focussed on community development and advocacy in the violence against women movement and on issues facing immigrants and refugees. She began working in the South Asian student movement in Toronto and continued after graduation as a Community Advocate and Counsellor at Toronto area women's shelters and crisis centres for women and girls and project for the Ministry of the Solicitor General on training police on appropriate intervention techniques for domestic violence.

In 1997, after graduation from law school and her call to the Bar in Ontario, she worked at the Ministry of the Attorney - General's Office of the Children's Lawyer representing children in child abuse, custody and access and civil litigation cases and have been concerned with the rights and protection of children and immigrants in Canada. As her interest in children and human rights grew she moved to South Africa to assist civil society advocates in their quest to ensure the new South African Constitution was representative of the interests of the community.

Since 1999, she has worked all over the world on human rights and legal development issues for women, children, refugees, IDPs in conflict and post-conflict settings, with a special emphasis on issues ranging from development of rule of law institutions and governance, the role of customary and sharia legal systems, human rights and humanitarian law , duties and responsibilities of national and international actors in building judicial and political institutions and civil-military interaction strategy and tools in the evolution of states and regions from crises to stability.

Countries she has worked in include: Afghanistan, Southern Sudan, Iraq, Sri Lanka, Indonesia, Bosnia, Croatia, Occupied Palestinian Territory and South Africa. Organisations she has worked for include: Norwegian Refugee Council, International Development Law Organisation, The Asia Foundation, International Catholic Migration Commission, United Nations and North Atlantic Treaty Organization and the Organisation for Security and Cooperation in Europe.

Jasteena continues her research started at Harvard on justice and rule of law, informal and formal justice systems in conflict, post-conflict and transitional countries and regions.