A mixer driver delivers a useable concrete ready mix, like Cemex, to various job sites in a concrete mix truck. As a mixer driver, you may work as an independent contractor, or as an employee of a construction material supplier. As safety and order accuracy are your primary responsibilities, experience with concrete mixing is crucial. However, on-the-job training is provided to teach you the intricacies of mix truck operations. The appropriate commercial or heavy equipment license for your state and a clean driving record are the primary qualifications of this career. Excellent communication skills are desirable, especially if you plan to work as an independent contractor. Your duties include inspecting the job site and pouring the ready-mix safely without damaging the property.