share artifacts between projects on one slave

I have a master-slave config set up for Jenkins where the master in on a local site, the slaves on AWS. I would like to set up Jenkins such that

• build and
• tests

are separate projects. For this to work, I need to pass the build artifacts between the jobs. The artifacts are of the size of several hundred MB. Unfortunately, although all projects are build on the same node, the artifacts are always passed through master, imposing a serious speed penalty.

Is there a way to keep artifacts local to a build slave and pass them between projects there?