This is one of three Builder pins available at the Droid Depot at Star Wars Galaxy's Edge. This one represents builders of BB-droids at the workshop. There is an orange banner which says "BB Series Builder" in front of two assembly tools crossed as an X. The background is black with wires seen at the top, a tiny Droid Depot logo, and "Droid Depot" and "Black Spire Outpost" in Aurebesh.