Hi where can i post a job offer for Magento?
in which topic?
Well AKAIK , There is no specific topic thread for this kind of post (job offer)
Basically this is a community forum where you have any kind of issue/problem related to magento then you can post it for the same.
Community member will help you to resolved that issue.
But here your question is not related to any issue so might be this platform is not suitable for the question you have asked.
Still you can check this link - https://partners.magento.com/portal/directory/?_=1519018244405&_token=KWg5tm9W2XR6c7mOyBXXtKaak_DSEp...
This link is for solution partners of magento , that might helps you.
You're absolutely right.
Is part of the forum guidelines: https://community.magento.com/t5/News-Announcements/Guidelines-for-Using-the-Magento-Forums/m-p/1519...
(I'm not sure why I've answered that... )