Description: Required Requirements: Driver's License category B, C, or D; Knowledge in underground drilling and blueprint reading; Commitment to safety and regulations (NRs); Availability to work in shifts and underground environments; Availability to reside in Aripuanã/MT; Desirable Requirements: Training in Jumbo operation; Experience in large-scale mining; Basic knowledge of preventive maintenance; Professional development courses and driver's license category D or higher. Experience as a Jumbo Operator or similar; Skills and Competencies: Attention to detail, safety awareness, and proactivity; Teamwork and good communication skills; Agility, organization, and focus on results. * Perform routine inspections of equipment and work area; * Monitor and carry out grouting of the face and pump locking; * Operate and maintain radio communication to align activities; * Select position and accurately mark the drill hole; * Plug floor holes with appropriate tubes; * Perform parallel drilling of the face according to technical parameters; * Isolate the work area in compliance with safety standards; * Wash the face for inspection of roof conditions; * Replace drill bits at appropriate times, ensuring efficiency; * Evaluate tools and report maintenance or replacement needs; 2510100202241769183