Refrigeration jobs in Mississippi cover commercial service, cold chain facilities and industrial refrigeration tied to poultry, prepared foods, cold storage and ammonia refrigeration. Key hiring areas include Jackson, Hattiesburg, Tupelo, Laurel and Meridian. Employers such as Wayne-Sanderson Farms, Tyson Foods, Peco Foods and Koch Foods help define the local market for refrigeration techs and operators. EPA 608 is often expected for refrigerant work; RETA CARO or CIRO can matter for ammonia refrigeration jobs. Pay depends on shift, credential level and facility complexity. Find commercial and industrial refrigeration roles in Mississippi.