Position Summary:  The Senior CNC Mill Set Up Machinist is responsible for setting up and operating any job, new or repeat, on CNC mills to achieve defect-free results within estimated timeframes. Utilizing shop equipment, this role focuses on delivering tasks punctually to meet both external and internal customer expectations. The Senior CNC Mill Set Up Machinist plays a crucial part in complying with company procedures, machining complex parts, collaborating with the programming department, and mentoring less experienced personnel.