"회사일 좋은 작품 만들었네 수고 많았어" => 회사 일 좋은 작품 만들었네. 수고 많았어. - 회사 일: company work. company project. - 회사 일로: [for, with, out of] a company work. -로 is a particle expreassing a means or a reason. - 좋은 작품: a fine (piece of) work. It is mostly used for work of art, music, and literature, not mass-produced things. - 만들었네: made (it). - 수고 많았어: That was good work (on your part). Good job. The phrase is unclear because "회사 일" doesn't connect well with the rest. Perhaps it is saying 회사 일로 좋은 작품 만들었네. 수고 많았어, which means: You made a fine work [좋은 작품] out of a company project [회사 일로]. Good job. But it is very rare to say 좋은 작품 in connection with a company work (좋은 제품, a fine product, might be better). Plus, 수고 했네 implies the phrase is being said by a superior to a subordinate, but no one says 회사 일로 in the workplace because everything is 회사 일 to them. It is the same way we never say "breathing air" even though we all breaths air. So the sentence really doesn't make much sense.

I think there are some missing part in the sentence so I cannot fully understand. I guess "About the company work, you made a good product. Good job."