After finishing his military service, Joop started working in healthcare. From 1987 to 1997 he worked as a counsellor in elderly care, mental health care and youth care. From 1997 to 2014, he worked in various management positions in the same healthcare industry. In 2014, he founded an organisation and consultancy agency, DOEG B.V. From this position, he had various reorganisation; interim and coach assignments. In addition, he had been active in employment mediation. At this moment, he still carries out some assignments. Also, from DOEG B.V. he accepts another big assignment in the disability care for years to come, before signing up at Expense Reduction Analysts. In short, he is a busy person, but he loves his job and do not go out of the way.