Registration in Primoweb to teach
If you want to teach within the Fédération Wallonie-Bruxelles, you should be able to prove that you have the required qualifications to this end: pedagogical skills and knowledge of the discipline you wish to teach.
If you do not have the required diplomas, you can always register in the Primoweb database, which the executive boards of the schools consult to recruit their staff. People with the required qualifications will be prioritized, but in case of shortage, you might be contacted.