Is it a sin to organize liqour & meat on cutomer request as a prt of my job?
Karma is a state of mind. If you intentionally order animals to be slaughtered, it breaks the first precept. If you order meat(dead animal bodies), it does not break the first precept. Serving liquor to clients does not break the fifth precept. 

But both serving liquor and selling meat can come under Micca Ajiva(wrong livelihood)as you are doing it to make a living.