Sample Preparation Supervisor

About the role

Saudi Gold Refinery is seeking a Sample Preparation Supervisor to lead the physical and chemical preparation of gold dore and exploration samples in Riyadh. The role ensures ISO 17025 compliance, manages a team of technicians, and safeguards chain‑of‑custody and safety throughout the sample workflow.

Key responsibilities

• Oversee daily intake, crushing, milling and splitting of dore and core samples to meet assay lab turnaround targets.
• Enforce ISO 17025 quality standards through duplicate checks, equipment calibration and corrective actions.
• Implement Permit‑to‑Work and Lockout/Tagout safety procedures and conduct regular safety drills.
• Coordinate preventive maintenance for crushers and mills and manage spare‑parts inventory.
• Maintain rigorous chain‑of‑custody records and report any discrepancies immediately.
• Develop and deliver technical training for sample‑preparation technicians and assess competency quarterly.
• Monitor consumables stock (grinding media, crucibles) and place requisitions to avoid shortages.
• Generate daily production reports on sample volumes, equipment status and safety observations.

Required profile

• Bachelor’s degree in Geology, Chemistry, Metallurgy or related field.
• Minimum five years of hands‑on sample preparation experience in a mining or refining laboratory.
• Proven experience supervising shift‑based technical teams in an industrial setting.
• Legal authorization to work in Saudi Arabia and willingness to reside in Riyadh.

Required skills

• In‑depth knowledge of ISO 17025 laboratory standards.
• Technical proficiency with jaw crushers, ring mills and pulverizers.
• Experience with chain‑of‑custody management for precious metals.
• Familiarity with Laboratory Information Management Systems (LIMS) for digital sample tracking.