Thank you for your feedback and good question @Daniel_Mor. A warm welcome to the Forum! 
You may want to upvote this feature request: Viewing all assigned tasks across multiple workspaces However, that feature request deals more with multiple Asana workspaces/organizations, and you’re asking about cross-platform syncing between Asana and Upwork. I don’t see an Upwork integration listed yet in Asana Apps and Integrations • Asana or Integrations - Asana Community Forum, but your post is a good start.