In 1963 he was in charge of GAI at the Directorate of General Order Security in Dnipropetrovsk Oblast.

In 1968-1974 Hladush headed the Directorate of General Order Security in Dnipropetrovsk Oblast.

In 2010 he was awarded a rank of General of Internal Service by the President of Ukraine Viktor Yanukovych.

[2] In April 1988 Ivan Hladush as a minister of Interior headed a government commission in regards to recent findings in woodlands around Darnytsia.

[3] The commission came up with its report announcing that in Bykivnia were killed Soviet people by Nazi-Fascist invaders.