Please bear in mind that a lot of the jobs will be in Dutch and that the fact that a student might not be fluent in this language could make it more difficult to find a job.
A student from an EU member state who has a job for at least 32 hours per month can apply for a student grant from the Dutch government. For more information about this please check the website of the Dutch student registration office DUO or go to its office in Eindhoven:
5611 XP Eindhoven
Or contact the central number: +31(0)50 599 77 55
It might be possible to get a job at a department within the university. Please inquire at the personnel section of your department to find out if there are any student assistant jobs available. You could also ask your professor if he knows of any possibilities.