The Engineer DAO token (ENGI) is a governance and rewards token. Holders of the token can vote on management of the DAO and usage of funds in the DAO Treasury.
The token is on the Polygon POS (Matic) network. The token contract address is:
0x7821c3B5d08B745972438112b5B8E03bB288F12b
Here are the token details on Polygonscan.