At ALS, we encourage you to dream big. When you join us, you’ll be part of a global team harnessing the power of scientific testing and data-driven insights to build a healthier future. About The Position. The Fire Assay Loader will conduct routine and non-routine analyses of geological. samples, fusion, and cupellation. Specific Responsibilities. Crucible management and set up/prepare samples for fusion. Perform fusion and cupellation processes ...