We claim the ornamental design for an icon for a job submission software application for a document-jobs system user interface, as shown and described.
FIG. 1 is a front view of an icon for a job submission software application for a document-jobs system user interface showing my new design; and,
FIG. 2 is an enlarged front view thereof.
The broken lines of the drawings of FIGS. 1-2 are for illustrative purposes only and do not form part of the claimed design.