Afterwards, he left for Kyiv to become deputy executive director of the Association of Ukrainian Cities, where he would stay until March 2000.

From September 2001 to April 2002 he was vice-president of the All-Ukrainian Union of Public Organizations "Association of Regional Development Agencies of Ukraine", also based in Kyiv.

Concurrently with these activities, Kachur was adviser to the Prime Minister of Ukraine Viktor Yushchenko between 9 March 2000 and 30 May 2001.

[4] Kachur served as Minister of Construction, Architecture, and Public Housing and Utilities in the Yekhanurov government from 28 September 2005 to 4 August 2006.

[11][12] From 20 March 2008 to 2 April 2010 Kachur was a member of the National Council for Interaction between Public Authorities and Local Self-Government Bodies.