Mahanadi Coalfields Jobs Jr Overman, Surveyor posts. Mahanadi Coalfields Limited has Announced a Notification for the recruitment of Mining Sirdar, Jr Overman & Surveyor vacancy. For regular Jobs, and updates keep visiting Jkalerts.com Or Download Our Mobile App for regular updates. Name of the post: SI No Post Name Total Qualification 1 Jr Overman 43 10+2, Diploma/ Degree