You can use the 'MY-UFO' web application to view the classification of your position.

If you feel that your job classification is no longer fitting, you can submit an application for reclassification with the manager of the unit where you work. The Regulation University Job Classification University of Twente 2015 (DUTCH) describes the decision-making process surrounding a University Job Classification, the options available to make your viewpoints known and how to submit a formal objection against a UFO classification decree.