Hüseyin Avni Metinkale completed his university education at Istanbul Technical University, Department of Management Engineering.
He started his career as a Project Manager at Albaraka Türk Participation Bank in 1985, and then worked at Pripack Ambalaj A.Ş. as Managing Partner.
Metinkale, who has served as Committee Chairman, Member of the Executive Board and Chairman of the Packaging Group within Yıldız Holding since 2001, worked as Yıldız Holding General Manager between 2008 and 2020, and as the Secretary General of the Holding Board of Directors between 2010 and 2020.
In 2020, Kökler Investment Holding A.Ş. Appointed as the CEO, Metinkale has been a Member of the Board of Yıldız Holding since 2016.