Bart-Jan Ruesink has a background in Civil Engineering and worked as a construction surveyor on a number of construction projects in the Netherlands. He has been responsible for the immersed tunnel systems at Geocon since 2007 and has been involved in 25 immersed tunnel positioning operations on projects in South Korea, Ireland, Italy and the Netherlands. After his hydrographic career at Strukton, he now works for ZuidPlus in The Netherlands.