Waseem joined Sikkuy in August, 2017 as the Knesset Coordinator for the Equality Policy Department. In 2019, he started coordinating the project for proper representation of Arab citizens in the public services sector. With a law degree and a member of the Israeli Law Society since 2007, Hosary is a social and political activist with a diverse professional background including serving as political and parliamentary adviser to several Knesset members. With his own law practice, Hosary has provided legal advice to several civil society organizations  and has managed a number of social and community projects. Hosary lives with his wife and three children in Um el Fahm.