At **COPPERFIELD**, a leading plant in the processing of polymetallic minerals, we are seeking a (01) professional to fill the position of **Commercial Controller.** **REQUIREMENTS:** * Bachelor's degree in Mining Engineering, Metallurgical Engineering or related fields. * Knowledge of marketing and valuation of concentrates and polymetallic minerals. * 1 year or more of experience in the same or similar position. * Intermediate-level proficiency in Excel and Power BI. * Understanding of metallurgical balances. * Availability to work under a 14x7 regime in Paramonga - Barranca. **FUNCTIONS:** * Validate and consolidate daily production, stockpile, weighing scale, and chemical and metallurgical laboratory data, ensuring consistency and reliability of information related to the production and commercial processes. * Verify mineral traceability from stockpiling, blending, processing, and concentrate dispatch, ensuring physical records match system records (grades, moisture, penalties, and tonnage). * Prepare daily, weekly, and monthly reports, as well as control dashboards per campaign: tons treated, metallurgical recoveries, penalties, and margins achieved. * Perform reconciliations between theoretical and actual production, identifying deviations, flagging irregularities, and proposing corrective actions. * Participate in the validation of commercial settlements with customers (traders and smelters), reviewing prices, contractual terms, and applied calculations. * Coordinate with Plant, Laboratory, Sampling, and Logistics departments, while also supporting managerial reporting, profitability analysis, and internal or external audits, based on transparency and control principles. **BENEFITS:** * 100% covered meals. * 100% covered accommodation. * Transportation to the city of Barranca. * Statutory benefits. ***AVAILABILITY TO WORK UNDER A 14X7 REGIME.*** Job type: Full-time Application question(s): * Do you have immediate availability? * Please indicate your prior experience, detailing your main responsibilities. * What is your salary expectation? Work location: On-site employment