[linkdd]

Documentation and communication is key.

The frontend team will be using the APIs provided by the backend. It should at least be fully documented to avoid unnecessary back and forth.

Regular "get together" meetings (remote or not, not necessarily with everyone) can help exchange pain points and prioritize issues. But not too often to impact productivity.

Basically, the backend team should know what the frontend team needs to consume. And the frontend team should know what the backend's technical limitations are. Trust in each-others expertise is also important IMHO.