This is just the sign "count" with the agent or "person affix" sign added.
Some people do the sign "count" twice before adding the agent affix.
accountant
Side view of "count."
Sign: accountant
Synonyms:
Handshape:
Dominant hand: "F":
Non-dominant hand: flat:
Location:
Orientation:
Movement:
Non-Manual Marker:
Interpretations:
Inflections: