As a contract engineer, you provide temporary support for a company that needs help. In this role, you may help design a product or structure, provide guidance to builders working off of your plans, or evaluate a company's existing system to be sure the proposed engineering plan matches their capabilities. Many aspects of this job depend on the type of engineering support a company needs. For example, some contract engineers focus heavily on the mechanical aspects of a project, while others help hire contractors, evaluate proposals, and answer questions related to the project.