Assistant Manager, Plant

About the role

Menasha Corporation is all about possibilities. Our two businesses, Menasha Packaging and ORBIS Corporation, are leaders in their industries, providing corrugated and plastic packaging products and related services to major global companies. Our employees make the difference, proving that great ideas, collaboration and quality turn possibilities into success. Working at Menasha Corporation means that your insights provide cutting-edge solutions for our customers. If you like to make things happen and are passionate about what you do, you’re going to want to be here. Join us and become part of the power behind possible.

The Assistant Plant Manager is responsible for supporting a multi-site operation, with a primary focus on production performance, mold change operations, employee safety, quality, scrap reduction, and supervisor development. This role provides day-to-day leadership to the production department, ensuring safety, quality, delivery, and cost objectives are consistently achieved while fostering a culture of accountability, continuous improvement, and employee engagement. The Assistant Plant Manager serves as a key member of the plant leadership team and acts as the Plant Manager's designee in their absence.

Responsibilities

• Manage operations across a multi-site campus.
• Lead day-to-day plant operations and ensure performance against safety, quality, delivery, cost, and productivity objectives.
• Drive OEE improvement initiatives and remove barriers to equipment performance and throughput.
• Monitor and improve Direct Labor Efficiency (DLE) through workforce optimization and operational discipline.
• Lead daily production meetings, escalation processes, and action item follow-up.
• Ensure compliance with all EH&S, environmental, customer, and quality requirements.
• Direct, coach, and develop supervisors and team leaders.
• Support union labor relations, grievance investigations, contract administration, attendance management, and progressive discipline.
• Lead root cause analysis activities using structured problem-solving methodologies.
• Assist with multi-site collaboration and deployment of best practices across ORBIS facilities.
• Serve as acting Plant Manager when assigned.
• Other duties as assigned.

Requirements

• Bachelor’s Degree required
• Master’s Degree desired
• 5-8 years of relevant work experience
• 3-5 years of leadership experience, including salary direct reports
• Desired 5-10 years of experience in plastics manufacturing
• Desired 5-10 years of experience in a welding and/or fabrication environment
• Union leadership experience
• Travel Requirements: 5% - 20% travel

Performance Measures

• Safety metrics
• Quality metrics
• Delivery metrics
• P&L metrics
• Production metrics
• Employee engagement