Markus Kaune received his law degree after studies at Ruhruniversität Bochum (Germany) and at Rijksuniversiteit Leiden (Netherlands), with a subsequent bar exam.

In 2011 he joined E.ON Energie AG in Munich as a lawyer, Legal and M&A-division, where he worked until 2005. During this period he was in the years 2003 and 2004 a member of the post-acquisition integration project team at ZSE in Bratislava.

The years 2005 through 2008 Markus Kaune spent abroad at E.ON Bulgaria EAD, Varna and Sofia where he took the position of Senior Vice President Central Functions. From 2008 to 2011 he worked back in Germany as Vice President Portfolio Development and Central Eastern Europe for E.ON Energie AG, Munich.

In 2011 he became Vice President Energy Networks, E.ON SE, Düsseldorf/ Essen and it 2017 he took up the position of Senior Vice President Energy Networks with E.ON SE, Essen. Along with executive functions, Mr Kaune has been a member of supervisory boards at E.ON Bulgaria EAD, E.ON Bulgaria Grid AD, E.ON Bulgaria Sales AD as well as the Supervisory Board of ZSE (2016-2020). Since 2020 he has been serving as a Chairman of the Board of Directors and General Director of ZSE, a.s.