Any advice on how to kill Mechanized Lab Assistant for the heritage armor quest chain?

I am trying to get the Goblin Heritage set but am having issues with the Lab assistant. He kills me so quickly. I am doing this on an alt so its not a raid geared character. Do I need to farm high ilvl? Or is there a trick that I am missing? He kills me in just a couple of shots.

I think the developers assumed you would have above average gear for the time it was released. What is your goblin’s ilevel?

It is only 398. I just power leveled her to get the heritage armor

Whenever he yells about doing the Thermal Stress Test or the Explosives Test hit the button for your shield. It’s a channel, so you have to hold still once you hit it.

The rest of the time just avoid the flame thrower and bombs as best you can while dpsing.