Nikolaas Kleermaker graduated suma cum laude from Technische Universiteit Delft with a Masters in Offshore Engineering in 1983, and has worked on various projects, including the Delta Works to protect Rotterdam. He was hired as chief engineer for the Batavian Kingdom's Marsdieperwaard. He has since joined forces with Dangel Hickstra in the North Frisian Islands projects.
Kleermaker was born and raised in Hoorn, keenly interested in the results of the Zuiderzee works, and their effects on the polders of his country. Aware of his country's battles against the sea, Kleermaker desired nothing more than to preserve his homeland.
He attended Delft University of Technology, graduating cum laude with a degree in engineering.