Load aggregates into trucks and trailers, and maintain access roads in good condition to ensure smooth vehicle traffic, thereby effectively supporting a faster and more efficient sales process and maintaining yard organization. * Conduct machine inspections, checking oil level, coolant level, and lubrication to prevent unscheduled downtime due to lack of maintenance before the scheduled preventive maintenance; * Perform daily loading and receiving of materials from stockpiles into buckets and trailers for sales, maintaining communication with the dispatch team to understand required quantities and customer requests, in accordance with activity procedures; * Upon receiving aggregates from quarries, verify and reconcile delivery notes and/or tickets against received materials and report discrepancies to the Supervisor; * Regularly organize production/quarry-sourced aggregate stockpiles in accordance with activity procedures to maintain standardized inventory; * Conduct weekly (or as needed) daily yard inspections to identify any non-conformities, and organize debris, parts, and other items placed in the yard to maintain order and standardization; * As required, assist the workshop by using the front-end loader to load heavy parts and tires, facilitating handling of such items; * Perform field refueling by transporting a mobile diesel tank to the quarry site one to three times daily, or as needed; * As required, refuel machinery and vehicles in the field and at the physical fuel station daily, depending on demand and in accordance with activity procedures; * Load and unload steel plates and reinforcement bars two to three times per week, as required and in accordance with activity procedures, for facility cleaning and environmental maintenance; * Open internal and external access routes daily (or as needed) by operating the excavator, to facilitate internal production access and external access for employees, customers, and suppliers; * Perform material blending (proportioning) as needed and in accordance with activity procedures to meet customer requirements; * Support production upon Supervision’s request by transferring material stockpiles from the crusher to the yard and setting up inventory; * Daily (or as required), jointly with the Supervisor, compare and verify the system’s material dispatch report against physical inventory to conduct inventory reconciliation; Adhere to established safety regulations, wearing personal protective equipment (PPE) and applying safe work practices during all activities to ensure operational safety.