Job Description. Job Description. At Sonic, you’ll serve great food, make great friends and soak in a uniquely energetic work environment. And as a Shift Leader, you’ll play a special part in making Sonic a rewarding place to work. Check us out…. Restaurant Team Lead / Crew Lead / Shift Manager is generally offered as full time or part time restaurant job. Prior experience as shift lead, crew lead, supervisor, team lead, restaurant manager, resta...