Sonja de Lange

Sonja de Lange is a seasoned financial professional with extensive experience in various roles within the finance sector. Currently serving as a Senior Controller at CIZ since September 2005, responsibilities include acting as a sparring partner for the region, analyzing primary processes, FTEs, and costs, along with norm time research analysis. Previously, Sonja de Lange was a Product Manager for Administrative Services at Ziekenhuis Groep Twente from July 2000 to August 2005, overseeing a team of six financial professionals and acting as the main contact for companies and accountants. Earlier in career, Sonja de Lange held the position of Head of Administration at Norma from 1996 to June 2000, managing comprehensive administration, including personnel and project administration, and developing reports. Educational background includes a Bachelor’s degree in SPD and a Masterclass in Operational Auditing from Hogeschool Markus Verbeek, along with ongoing education in Lean methodologies and PCO knowledge.