Skills and Knowledge: Knowledge of ICP-MS, laser-ablation ICP-MS, ICP-OES, ion chromatography, and related analytical workflows; instrument calibration, tuning, maintenance, and troubleshooting; microwave-assisted acid digestion and other sample-preparation methods; trace-element and isotope analysis; analytical method development and validation; QA/QC and data management; chemical hygiene, PPE, waste management, laboratory safety, inventory, and instrument scheduling. Required Minimum Qualifications: Master's degree in geochemistry, analytical chemistry, geology/earth science, environmental chemistry/science, or a closely related field and two (2) years of laboratory experience; OR doctorate in geochemistry, analytical chemistry, geology/earth science, environmental chemistry/science, or a closely related field and some laboratory experience.