Albert Barnes Commentary Exodus 5:6

"And the same day Pharaoh commanded the taskmasters of the people, and their officers, saying," — Exodus 5:6 (ASV)

Their officers - Or scribes. They were Hebrews able to keep accounts in writing, appointed by the Egyptian superintendents, and responsible to them for the work . Subordinate officers are frequently represented on Egyptian monuments, giving in written accounts to their immediate superiors.