A racker works on a production line, generally in a painting or finishing stage. As a racker, you place materials on a rack to set them up for finishing touches. As part of your duties, you may work with materials such as lead, chromium, zinc, and more. You are also tasked with maintaining high safety standards on the job. Prior experience working on a production line is generally the only required qualification, though some jobs offer on-the-job training if additional skills are required. Many rackers use the job as a starting point for a career in production.