OEM Supply Planner

Maddox is the nation’s leading provider of electrical transformers to the commercial and industrial market, with primary locations in South Carolina, Washington State, Texas, Idaho, and Ohio. We have been recognized by Inc. Magazine as one of the fastest-growing companies in America for the past 8 years and counting. Maddox was founded on Christian values, and we are committed to investing in people, processes, and culture.

About the role

As a Maddox OEM Supply Planner, you will report to the Supplier Relations Manager under the direction of the OEM Purchasing Team Lead in a fast-paced procurement environment. Your work will focus on managing new stock programs—mitigating supply risks and ensuring profitability through consistent inventory breadth and depth. You will oversee a large portfolio of new stock items across multiple product lines and warehouse locations nationwide.

Using supply chain planning tools, you will forecast SKU-level product demand, maintain safety stocks, and prevent costly shortages. Your responsibilities will include ensuring Maddox procures the right stock units, from the right OEMs, in the right quantities, and at the right time. You will also support the OEM Purchasing Team Lead and Analyst with purchasing, planning, supplier performance, and reporting projects as needed.

Daily tasks include reviewing weekly sales trends, calculating replenishment orders, and directing OEM Purchase Order Coordinators on what, how much, and from whom to order. You will lead weekly Stock Steering meetings with the OEM Purchasing Leadership Team to develop and report on supply strategies.

Responsibilities

• Manage new stock programs to mitigate supply risks and ensure inventory profitability.
• Forecast SKU-level product demand using supply chain planning tools.
• Maintain sufficient safety stocks to avoid inventory shortages.
• Determine optimal stock units, suppliers, quantities, and timing for procurement.
• Review weekly sales trends and calculate operational and tactical replenishment orders.
• Direct OEM Purchase Order Coordinators on order specifics (items, quantities, suppliers).
• Lead weekly Stock Steering meetings to formulate and report on supply strategies.
• Assist with purchasing, planning, supplier performance, and reporting projects.

Qualifications

• Intermediate-to-advanced proficiency with spreadsheets and dashboards (Excel, Power BI, Google Sheets).
• Experience working with large datasets and deriving actionable insights.
• Kaizen (continuous improvement) mindset with a focus on process optimization.
• Strong sense of urgency and attention to detail.
• “Owner’s mentality”—taking responsibility and driving tasks to completion.
• Confidence to seek help when needed while maintaining independence.
• Customer-centric approach, providing solutions for internal stakeholders and suppliers.
• Ability to manage rapidly changing priorities while maintaining composure.

Skills and Experience

We value experience and are open to candidates with 20+ years in related fields, as well as promising early-career professionals with the right attitude. While education or experience in engineering, data analytics, supply chain, manufacturing, or purchasing is desirable, it is not required. Candidates with APICS CPIM, CSCP certifications, or Six Sigma credentials are strongly encouraged to apply.

Schedule

In-office role with occasional domestic travel (up to 10%).

Pay

Hourly range: $31—$41 USD.

Benefits

• Comprehensive full-time benefits package averaging $20,000+ per year (varies by age, family size, and eligibility).
• Health and wellness benefits (insurance or cash-in-lieu options).
• Paid maternity and paternity leave.
• 401(k) with 100% match up to 8% of wages.
• Paid holidays, PTO, and family-life gifts.
• Vision, dental, disability, life insurance, and other voluntary benefits.