div#job-table {
   display: flex;
   flex-direction: column;
   border: 2px solid black;

   table {
      margin: 5px;
      border: 2px dotted fuchsia;
   }

   mat-paginator {
      margin: 5px;
      border: 2px dotted turquoise;
   }
}

<div id="job-table">
    <!-- Main table -->
    <table
        mat-table
        multiTemplateDataRows
    > ...
    </table>

    <!-- Pagination -->
    <mat-paginator
      ...
    ></mat-paginator>
</div>