A compounder works to mix or otherwise combine ingredients to create substances based on a preset formula. Your duties include sourcing materials, weighing each element, batching correctly, and ensuring the proper ratios in the final product. A compounder can work in a variety of industries, but this job is usually associated with the pharmaceutical or chemical industry. In this field, you work to combine chemicals and ingredients to create medications. Compounders can also work for perfume companies, food companies, or producers of chemical-based household products.