Materials Management Supervisor

Date:  Mar 29, 2023

Kansas City, Missouri, US

Company:  WillScot | Mobile Mini
Req ID:  49180


Headquartered in Phoenix, Arizona, WillScot Mobile Mini is the North American leader in innovative flexible workspace and portable storage solutions. Our growing network includes over 275 branch locations and multiple shared service centers throughout the United States, Canada, and Mexico.

 As North America’s leader in innovative flexible work space and portable storage solutions, we are the only provider on the continent that can deliver everything customers need. Space. Storage. Furnishings. Services. Everything. With one order from us, they’re Ready to Work. Every facet of our company is geared toward providing this value. Our strong team of service-focused experts. Our vast fleet of quality portable units. Our turnkey solutions with limitless add-on options. Our expansive network that lets us deliver anywhere fast. The whole company is built to serve customer needs. Come Join Our Team!

The Materials Management Supervisor owns all material purchasing, receiving, organization, and storage for their designated WillScot Mobile Mini branch.  Key areas of responsibility include coordinating all inventory counts, identifying variances, and rectifying to standard, to ensure flow of those materials meets delivery and operational goals.



  • Maintain a safe working environment and practice safe working habits, always.

Systems Tracking

  • Inventory all parts into SAP before issuing them to production areas, stoking point or other noted production areas.
  • Record and assess all materials quality, movement, and expenditure.
  • Lead all material cycle counts for valuated inventory, consumables, and non-valuated inventory.
  • Oversee the counting and/or measuring of incoming or outgoing materials to verify measurements against invoices, orders, or other records.
  • Verify all receipts and consumption are completed real time in the appropriate consumption and procurement modes.  
  • Generate key inventory reports directly from SAP and BI to reconcile on premises inventory to SAP reporting.
  • Monitor and enter into SAP all materials that are placed in service or delivery vehicle that will be consumed during a Service or D&I work order.
  • Responsible for tracking performance using departmental metrics, as well as organizing inventory records for future reference.

Materials Handling/Storage

  • Supervise all activities related to receiving purchased parts, material flow and servicing parts as needed.
  • Ensure designated area on branch grounds where vendors deliver materials is safely aligned with branch production workflow.
  • Act as branch “gatekeeper” for all inventory items; ensuring they are stored in a secure manner.

Process Improvement

  • Recommend solutions to existing processes to reduce waste and increase quality and quantity.

Forecasting/Inventory Management/Movement

  • Work with branch management to identify inventory needs manage the distribution of inventory.
  • Monitor inventory levels and be proactive in resolving inventory variances. 
  • Manage materials shipments, as well as continuously improving the unloading, receiving, and secure storing process for all materials.
  • Confirm that all materials that were consumed in the appropriate Work Order process are accurately reflected on the work order and accounted for.
  • Be proactive in resolving inventory variances. 
  • Catalog and track all branch to branch transfers of materials.
  • Manage all materials-related activities such as ordering and budgeting, as well as suggesting changes to storage and retrieval processes to maximize the use of company resources.
  • Develop, implement, and sustain a plan for which materials/supplies are to be purchased, in what quantities and at what times to ensure that the plan will be able to meet current and future customer demand at the lowest possible cost.   
  • Maintain inventories at optimal level without impairing branch productivity. 
  • Order materials as needed, recognizing lead times for delivery to ensure availability for production.


Required Education and Experience: Briefly outline the educational level, degree program, and experience required to perform the job.

  • High School diploma or equivalent is required. 
  • Proficient with inventory reporting systems; experience with SAP Materials Management system a plus.
  • Understanding of supply chain an inventory management.

Required Skills and Abilities: Briefly outline the specific skills and abilities necessary to perform the job.

  • Excellent organizational and planning skills.
  • Excellent verbal and written communication skills.
  • Excellent interpersonal skills and the proven ability to work well with all levels of management and staff in multiple locations.
  • Ability to influence with and without authority.

Preferred Education and Experience: 

  • Bachelor’s Degree
  • Prior knowledge and/or experience working within a warehouse. 

Physical Requirements                 

  • Able to lift up to 50 lbs. without strain
  • Ability to work outdoors in extreme weather conditions
  • Able to be on your feet up to 8 hours (daily)



Disclaimer: The above statements are intended to describe the general nature and level of work being performed by associates assigned to this classification. They are not to be construed as an exhaustive list of all responsibilities, duties, and skills required of personnel so classified. All personnel may be required to perform duties outside of their normal responsibilities from time to time, as needed.


WillScot Mobile Mini is committed to providing equal employment opportunity without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or any other protected status with respect to recruitment, hiring, promotion and other terms and conditions of employment. WillScot Mobile Mini takes affirmative action in support of this policy to employ and advance in employment individuals who are minorities, women, disabled, and veterans.


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