Hi @SergioMartins ,
Thanks for posting your question and welcome here.
This is currently not possible but it’s planned for a future release (see this card on the Forge roadmap for details: Multi-User App Ownership).
In case this is in the context of a Forge app, a few developers have been discussing this topic and share a few ideas to allow multiple developers to develop an app in this topic: How do you let multiple developers work on the same Forge app?
This doesn’t enable more than one devs to access the same app in the developer console but could help in the development lifecycle.
Hope this helps,
Caterina