Materials Supervisor

American Rheinmetall; Plymouth (MI); On-site; USD 65,000 - 90,000; Full time

Job summary

American Rheinmetall, located in Plymouth, MI, seeks a Materials Supervisor to lead cycle counters/kitters and ensure accurate inventory for production builds. The role requires strong organizational and problem-solving skills, with emphasis on data accuracy and collaboration across departments.

The ideal candidate will have Plex ERP familiarity, strong Excel experience, and a background in supply chain or manufacturing logistics, plus supervisory exposure.

Qualifications

• Bachelor’s degree in supply chain management or related field preferred.
• 3–5 years of materials, logistics, or production support experience.
• Minimum 1 year of supervisory experience required.

Responsibilities

• Lead cycle counters and kitters to ensure lineside inventory accuracy.
• Forecast inventory needs and coordinate with production for timely parts.
• Perform small- and large-scale physical inventory cycle counts and adjustments.
• Investigate root causes of inventory discrepancies and drive corrective actions.
• Assist in training users on Plex and ensure PCR/ECN workflows are evaluated and completed.

Skills

Inventory management

Excel

Team leadership

Education

Bachelor's degree in supply chain management

Tools

Plex

Job description

American Rheinmetall is a leader in the design, development, and production of advanced tracked and wheeled vehicles, vehicle systems, and critical components that support U.S. military modernization. Our expertise spans electronic and mechanical systems, fabricated structures, armored products, rubber solutions, and track systems, delivering reliable innovation to both defense and commercial markets. As part of the global Rheinmetall family, we combine proven heritage with forward-looking technology to provide solutions that defend and feed the world.

Job Summary

The Materials Supervisor is responsible for ensuring inventory accuracy by leading cycle counter(s)/material kitter(s) as well as enforcing materials policies and processes for all departments. This position will lead small-scale and large-scale cycle counts and be responsible for root causing inventory discrepancies and adjusting Plex when necessary. It will also be responsible for providing inventory forecasts and materials needs for lineside production completion/shipment. In this position attention to detail and problem-solving skills in a fast-paced working environment are vital. This job will require strong computer and communication skills. Collaborative efforts with all internal departments and customers will be required.

Essential Functions

• Responsible for inventory accuracy and forecasting inventory needs
• Managing inventory analyst(s) and cycle counters/kitters to provide lineside production with parts needed for builds
• Implement small- and large-scale physical inventory cycle counts
• Root cause inventory discrepancies
• Perform inventory adjustments as necessary
• Problem solving skills and attention to detail are critical in this position
• Excel and Microsoft Office experience required for reports and data manipulation
• Become a subject matter expert in Plex and assist in training on use
• Ensure PCR and ECN workflows are evaluated and completed
• Assist in product movement activities including instruction for Shipping/Receiving/Forklift drivers
• This job may require obtaining a forklift license
• Perform other related duties as assigned

Minimum Qualifications

Knowledge, Skills and Abilities (as demonstrated through experience, training and/or testing)

• Strong organizational and inventory management skills
• Knowledge of material handling, storage systems, and production support logistics
• Ability to coordinate schedules and communicate effectively with production and operations teams
• Familiarity with ERP/MRP systems (Plex specific experience is a plus)
• Sound decision making skills in an environment with on-going changing priorities
• Exceptional problem-solving and decision-making skills
• Ability to lead and supervise a team effectively
• Ability to obtain a PIV license

Education

• Bachelor’s degree in supply chain management or related field required preferred

Experience

• 3-5 years of related materials, logistics, or production support experience required
• Minimum 1 year of supervisory experience required.

Background Prerequisites

• Must undergo and meet company standards for background check, employment verification, reference checks and controlled substance testing.

Preferred Qualifications

• Supervisory experience in manufacturing industry
• Microsoft Office with Excel
• Plex Software (will train the right candidate)
• Knowledge of AS9100 and ISO14001 compliance

Working Conditions and Physical Demands

With or without reasonable accommodations, requires the physical and mental capacity to perform effectively all essential functions. In addition to other demands, the demands of the job include:

Physical Requirements

• Required to stand, walk, sit, use hands to handle objects, and reach with arms
• Occasionally lift up to 50 pounds

Repetitiveness

Moderate; tasks will involve computer entry and inventory handling

Work Environment

Combination of office and fast-paced warehouse/production floor environments

Hazards/PPE

Regular exposure to warehouse and production floor conditions; PPE required as per company policy

Travel Requirements

Minimal; may occasionally travel to customer or supplier sites.

Equal Employment Opportunity Statement

American Rheinmetall provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sex (including pregnancy), gender identity, national origin, age, disability, or marital status, in accordance with applicable federal, state and local laws. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation, and training.

Equal employment opportunity, including veterans and individuals with disabilities.

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