Jack Verhoeven, with a background in electrical engineering and mechanical engineering, has worked in the Slotervaart building for 28 years. As head of the technical department, Jack and his team were responsible for the preventive and corrective maintenance of the building and its installations from 2007, until the bankruptcy. After a short period as project manager at NKI AVL, for the management of the Slotervaart building, he is now employed by Zadelhoff. Since October 2020, Jack was the building manager and member of the construction team, working on the renovation of the Slotervaart Care Centre.