1985		completed certification as professional gardener: Tree Nursery Boock, Jena
1985–1990		gardener in different tree nurseries and nurseries for perennial herbs in Bad Köstritz, Dresden, Oberdorla und Darmstadt
1994		became a qualified engineer for landscape architecture: Fachhochschule Erfurt
1994–1995		involved in pilot projekt to survey and map biotopes of villages of the county Thuringia
1995		worked as a qualified engineer in horticulure and landscaping (nursery Boock OHG)
1995–1997		employee in the engineer firm GFL mbH in Apolda Zottelstedt
1997–2000		employee in the engineer firm IHLE+ROOS, landscape gardeners and landscape architects in Denstedt
seit 2001		worked as a landscape gardener and landscape architect in Jena