Thank you, Freddie. The thing is that it`s been a while since i have started working for a construction management company and i just wanted to have a native speaker`s opinion, like, is it even natural for people from the uk, the us, australia to hear "company performs technical client`s functions and provides construction supervision service" or there is another way to say it.

This is almost perfect as far as I can see. The only things I would correct are I coordinate my colleagues` work, negotiate with our clients, consult about plant`s commissioning. to I coordinate my colleagues` work, negotiate with our clients and consult about plant`s commissioning. I'd also use inspect over check in this case as you are inspecting it to make sure it is working properly. Also, the apostrophes look strange, but that might just be the keyboard you are using, and the intention and use of them is correct. Hope that helps! Any other questions please ask!