Just like Keelan, Ines is a part of the H.O.U.N.D. unit, specializing in Void Vessel missions. As the devs stated, Ines strength lies in dealing high AoE damage to a large number of enemies, using her Conductor state effect. If you missed it, she even has an awesome trailer video.
Source: N4G PC The First Descendant Ines Raya Details Revealed