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Mack Molding

Mack Molding

Design through FDA-approved plastics manufacturing

Materials Manager

Full-TimePosted on 9/16/2026
No salary listed
Senior
Bachelor's
Inman, SC, USA
In Person

About the job

Requirements
  • A four-year college degree in business or engineering, or equivalent experience.
  • A minimum of 5+ years of experience in manufacturing management or materials management.
  • Ability to interact with all levels of the organization and with customers.
  • Strong leadership, organizational, and management skills.
  • Experience with material requirements planning systems and shop floor control.
  • Experience with Microsoft Word and Microsoft Excel.
  • Ability to work in-plant in temperatures between 50°F and 110°F and around odors from plastic and paint processing.
Responsibilities
  • Lead and coordinate the plant's materials functions, including production control, purchasing, and inventory control.
  • Serve as the lead plant staff position in the absence of the Plant Manager.
  • Interact with the Business Unit to ensure customer service and satisfaction.
  • Manage and coordinate the Production Control Manager, Purchasing Manager, and Inventory Control Manager to ensure on-time shipments and outstanding quality.
  • Plan and control manufacturing costs to meet profit-and-loss budgets.
  • Provide direction and support to materials personnel, identify training needs, and coordinate training and development objectives.
  • Maintain monthly and quarterly sales figures and projections.
  • Own monthly inventory reports and balances.
  • Calculate projections for labor and capacity requirements.
  • Maintain ISO compliance through the use and understanding of Mack ISO policies and procedures.
  • Follow all safety rules and regulations and hold employees accountable for safety.
  • Maintain the company's standard of housekeeping in all areas.
  • Attend the daily production meeting chaired by the Production Control Manager.
  • Approve requisitions as needed.
  • Run sales reports multiple times per week and archive annual sales each Monday to ensure order integrity.
  • Run interplant ISL orders weekly.
  • Run the MSRP report and apply department labor totals to configure manpower required in molding, finishing, and paint.
  • Run the Finished Goods report to total all 90-class raw materials produced for the previous week.
  • Update and distribute the Value-Add report.
  • Run the Stock Status report several times a week to track net present value and identify scanning errors.
  • Manage the paint and packaging general ledger accounts.
  • Check cycle count activity against monthly targets set by Accounting.
  • Calculate direct and indirect labor dollars as a percentage of sales and finished goods produced.
  • Perform month-end and year-end inventory reporting, including Stock Status, work-in-process, resin and component receipts, MPC, ISL, part sales, miscellaneous sales, and packaging sales; reconcile all reports.
  • Summarize inventory and sales reports for the Plant President, Plant Manager, and Finance.
  • Assist the Plant Manager with the monthly profit-and-loss review with Finance, focusing on Sales, net present value, and packaging and paint general ledger accounts.
  • Work to reduce or eliminate potential inventory devaluation on the slow-moving inventory list provided by Finance.
  • Work with Customer Service and Account Management to ship available product, support quarterly sales goals, and maximize profitability.
  • Calculate machine capacity analysis from the quarterly forecast by importing routers from Mapics, aligning forecasts with work centers, calculating hours, and checking for errors.
  • Create quarterly Value Add/Material Usage reports by importing the End Item Cost Summary from Release Accounting, aligning results with the forecast, and manually calculating the balance.
  • Build the new quarterly Value-Add report template from multiple source reports.
  • Respond to Finance's annual request for the work-in-process cost report, update each part number's work-in-process value, submit the report before year-end inventory, and reconcile proposed changes with Finance.
  • Prepare for physical inventory by monitoring counts, labeling partials, combining like product and lot numbers, conducting cycle counts, shipping available product, recruiting auditors and tag writers, scheduling training, and coordinating the inventory schedule with Finance.
  • Run the Stock Status and Inventory Location reports on inventory day and send them to Finance.
  • Run the variance report after physical inventory, correct errors, reconcile variances with Finance, and post the inventory.
  • Send the Tag Edit file and variance report to Finance.
  • Perform other duties necessitated by changing business conditions.

About the company

Mack Molding provides end-to-end plastics-based product development and manufacturing across medical, commercial, and industrial markets. It combines design, prototyping, engineering services, injection molding, sheet metal fabrication, machining, and full assembly in ISO 9001, 13485, and 14001 facilities. Its MackMedical unit supplies fully assembled Class III PMA medical devices, surgical instruments, delivery systems, and orthopedic disposables. The southern division in Inman, SC and Statesville, NC focuses on large-part molding with 40 presses, supporting the goal of helping customers bring products to market efficiently through a single-source, regulated manufacturing solution.

Company Size

201-500

Company Stage

N/A

Total Funding

N/A

Headquarters

Milford, Connecticut

Founded

1920

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Simplify's Take

What believers are saying

  • In February 2025, Mack committed more than $3 million to new presses and automation.
  • In February 2026, Mack added five presses and invested more than $5.5 million.
  • Notpla's homecare partnership expands Mack into sustainable packaging and new consumer channels.

What critics are saying

  • Mack's 2024 Somple retirement transition risks customer and employee churn during 2025.
  • The 2025 Vermont discrimination ruling shows costly labor-management exposure and reputational damage.
  • If large-program wins stall, Mack's heavy capex in 2025-2026 becomes underutilized capacity.

What makes Mack Molding unique

  • Mack blends custom injection molding, contract manufacturing, and engineering across Vermont, Carolinas, Massachusetts, Connecticut.
  • Its 120-plus-press footprint includes 4,000-ton equipment for oversized, highly engineered parts.
  • Vertical integration and large-part capacity let Mack serve medical, industrial, and transportation customers end-to-end.

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