Done level 10 as a Sniper using gear from Hutta. Sent the companions out on crafting missinos while doing it too. All you need is a ranged class that can put a Damage over Time (DoT) on the bosses and kite around the pillars. Hardest boss is the melee guy with the plasma probes; he requires creative pathing as the entire room wll probably be full of probes by the time he's finally killed.
Now that must have took some patience.