Can I start working as a researcher in Slovakia without a separate work permit?

The research route is intended to reduce administrative steps for scientists. Residence for research and development lets you perform your research activity, and related employment, without obtaining a stand-alone work permit.

Your activity is defined by the hosting agreement, and you can typically work under an employment contract, a work-performance agreement or a scholarship, and teach a limited number of hours. Because the permission is tied to the research purpose, keep your hosting agreement valid and notify your host of any significant change to your activity.