Header or Body: This javascript embed can be put anywhere on page.  There are 2 options available depending on your desired results:

Option 1: Embedding higher in the <head> section may yield higher ad RPMs

Option 2: Adding it lower in the <body> section may yield faster page speed.

<script type="text/javascript" async src="//c.pubguru.net/pg.allgovernmentjobs.js"></script>
Implement ad units in the <body> section where ads should show:
Desktop Ad Units Mobile Ad Units
<pubguru data-pg-ad="AGJ_Top_Banner" ></pubguru>
<pubguru data-pg-ad="AGJ_sidebar" ></pubguru>
<pubguru data-pg-ad="AGJ_Below_Header" ></pubguru>
<pubguru data-pg-ad="AGJ_MPU_1stpara" ></pubguru>
<pubguru data-pg-ad="AGJ_After_Content" ></pubguru>
<pubguru data-pg-ad="AGJ_Top_Banner" ></pubguru>
<pubguru data-pg-ad="AGJ_Below_Header" ></pubguru>
<pubguru data-pg-ad="AGJ_MPU_1stpara" ></pubguru>
<pubguru data-pg-ad="AGJ_After_Content" ></pubguru>