Dutch Work Requirements
Dutch work requirements for non-EU/EEA citizens
All non-EU/EEA citizens who want to work in the Netherlands have to obtain a valid work permit. Normally it is the Employer that would make the request but the citizen can start this process themselves.
A work permit is valid only for the employer who makes the request and ceases if / when the employee leaves the job.
Who needs a Dutch work permit?
Expats from within the EU/EEA (the EU plus Iceland, Lichtenstein and Norway) / Switzerland do not need a work or residence permit for the Netherlands. As citizens of these nations they have the right to freedom of movement within each other.
Bulgaria and Romania, as the most recent EU member countries, can enjoy full freedom of movement. Croatia, who joined the EU in 2013, will not have full freedom of movement until 2020.
In addition, expats from within the EU/EEA also do not need a work permit if they intent to work in the Netherlands in order to perform certain types of work for short periods of time on an occasional basis (such as press service staff, musicians and visiting lecturers).
All other citizens of non EU/EEA countries will need a work permit work in the Netherlands.
For more detailed information and in order to be 100% sure what applies to your specific situation, contact the IND (Dutch immigration authority) and check the Residence Wizard menu item on their website to check in which category you fit. Alternatively, the CWI (UWV) (Werk.nl) can provide more info on work permits and provides information for foreign job seekers in various languages on the site.