Assistant Plant Manager
SEM MineralsAssistant Plant Manager — Trace Mineral Processing Operations in Quincy, Illinois | Full-time; pay based on experience We’re a trace mineral processing facility serving the livestock feed and pet food industries, supplying trace mineral blends and single-ingredient minerals to feed manufacturers and pet food producers. We’re seeking an Assistant Plant Manager to lead production, warehouse, and inventory operations with clear growth potential toward plant management. Key Responsibilities: Lead daily production of trace mineral blends and single-ingredient minerals, including packaging operations Operate and oversee the ferrous sulfate monohydrate drying kiln, ensuring consistent product quality and throughput on a 24-hour, five-day operation Oversee warehouse operations, inventory control, and production scheduling to meet feed manufacturer requirements Champion a strong food safety culture — enforcing GMP, traceability, and contamination-prevention standards across all shifts Drive process improvement and equipment reliability initiatives across the operation Enforce safety standards and maintain a strong safety culture across all shifts Build, train, develop, and maintain production teams Support continuous improvement in yield, quality, and cost efficiency Qualifications Experience in mineral processing, chemical manufacturing, or bulk material handling Hands-on knowledge of process operations Strong leadership and team-building skills Working knowledge of inventory management and warehouse systems Commitment to safety, food safety, and process discipline Growth Path - This role is designed as a steppingstone to Plant Manager, with exposure to budgeting, customer relations, and full operational leadership. Pay: $1.00 - $2.00 per year Benefits: Employee assistance program Health insurance Paid time off Retirement plan Work Location: In person