bayt
Lab Analyst
L'azurde For Jewelry
Riyadh, KSA
Onsite
Discovered Yesterday
Fire assayCupellation and partingWet chemical analysisICP-OESXRFAssay analysis of precious metals
Key Skills for This Role
Fire assayCupellation and partingWet chemical analysisICP-OESXRFAssay analysis of precious metals
Full Job Posting
Role responsibilities
- Perform fire assay, including cupellation and parting, and instrumental analysis such as XRF and ICP-OES on doré, jewelry scrap, reclaimed materials, process samples, refined bullion, and gold alloys.
- Determine precious-metal content, including gold and silver, accurately and report results within agreed turnaround times.
- Operate and maintain ICP-OES and XRF instruments, including calibration, performance checks, and preventive maintenance.
- Issue assay reports and certificates and maintain complete, traceable laboratory records in LIMS or an equivalent system.
- Apply internal quality controls such as reference materials, duplicates, and control charts in line with ISO/IEC 17025:2017 and applicable SASO standards.
- Handle, store, and dispose of hazardous chemicals, acids, and laboratory waste safely under applicable permits, Civil Defense requirements, and HSE policies.
- Provide timely results to refinery operators to support reagent and acid consumption, process quality, and precious-metal recovery.
- Reconcile sample weights, assay results, and returned residues with vault and inventory records to maintain chain of custody.
- Maintain procedures, records, and calibration logs for internal, customer, IMS, and ISO/IEC 17025 accreditation assessments.
- Register samples, record results, and issue certificates through LIMS; update assay, fineness, and metal-balance data in ERP systems.
Qualifications and experience
- Bachelor’s degree in chemistry, chemical engineering, metallurgy, or a related scientific field.
- At least three years of industrial laboratory experience; experience in precious metals refining, jewelry manufacturing, or mining is preferred.
- Proficiency in fire assay, including cupellation and parting, and wet chemical analysis.
- Hands-on experience operating and maintaining ICP-OES or XRF instruments.
- Working knowledge of ISO/IEC 17025:2017, including method validation, measurement uncertainty, and quality control.
- Knowledge of hazardous chemical handling and environmental waste disposal regulations.
- Proficiency in Microsoft Excel and laboratory information systems such as LIMS.
- Knowledge of LBMA and DMCC Good Delivery standards, including bar fineness specifications, assay methods, and responsible sourcing requirements.
- Good written and spoken English; Arabic is an advantage.
Laboratory standards and systems
- The role uses ICP-OES, XRF, LIMS or equivalent laboratory information systems, and company ERP systems.
- Work follows ISO/IEC 17025:2017, applicable SASO standards, and company HSE policies.
- Knowledge of LBMA and DMCC Good Delivery standards is required.
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