Complex sentence: Jason is a young, Canadian lawyer with experience in corporate law, which he found unsatisfying so he started working in international human rights law for the United Nations and a non-governmental organization (NGO) that opposes sex trafficking.
Split into simpler sentences: Jason is a young, Canadian lawyer with experience in corporate law. He found this work unsatisfying, so he started working in international human rights law for the United Nations and a non-governmental organization (NGO) that opposes sex trafficking.