John Middelkoop is a Kraanmachinist bij Vanthek at Gebr. van 't Hek. Colleagues describe them as "I worked together with John recently where he came to place a sheet pile wall with a quatropiler on a section of our project, the expansion of the A9. John's professional and friendly approach made it easy to address some of the start up issues we faced. His attention for safety and his detail for quality was perfect, when John had finished the work and was leaving he came to shake my hand and thank me for the good cooperation together, as it should be. I hope to work with John again in the future."