Yosef earned a Master of Divinity in Christian Education from Leadership University and Nairobi International School of Theology in June 2003. He also holds a Bachelor of Arts from West Africa Theological Seminary, which he completed in June 1999, as well as an Advanced Diploma from Maranatha University College in Accra, Ghana. Throughout his career, he has participated in various job training programs and has received certificates for those experiences. For nearly 20 years, Yosef has worked with child and family/community-based international non-governmental organizations (INGOs) in Ethiopia and other African countries in various roles. He is married and has three children.