As melee, I expect you'd probably want to do something similar, but start inside the boss on the rear/flank line, then move out while dodging AoEs. If you got 3 consecutive AoEs, maybe after the third, use a dash skill to get back to the boss, then dodge inwards.

Lining that up with the flamethrowers on Panto 2 is where it would get complicated as hell though.