Lead, Production Planning (SIOP Demand Planner)

L3Harris•Huntsville, AL
•Onsite

About The Position

The Lead, SIOP Demand Planner supports Demand Planning and Sales, Inventory, and Operations Planning (SIOP) activities within the business. The position is based at the company’s Headquarters facility in Huntsville, Alabama, and resides within the Scheduling & Material Planning (SMP) Center of Excellence. It reports directly to the Senior Manager of Production Planning (Schedule Integration). The role develops, maintains, and improves demand planning processes to align customer demand, business forecasts, inventory strategy, and operational execution plans. It supports the monthly SIOP cycle by translating market and program demand signals into actionable forecasts and planning assumptions that support decision-making across Operations, Supply Chain, Finance, Program Management, and Commercial teams. The successful candidate is expected to work with limited instruction, manage multiple priorities, and collaborate with internal stakeholders.

Requirements

  • Bachelor’s degree, preferably in Supply Chain Management, Operations Management, Business Administration, Finance, Engineering, or a related field.
  • Alternatively, a graduate degree and a minimum of 7 years of related experience is acceptable.
  • In lieu of a degree, a minimum of 13 years of prior related experience is required.
  • Ability to obtain and maintain a U.S. security clearance.
  • Ability to work with limited instruction, manage multiple priorities, and collaborate with diverse internal stakeholders.

Nice To Haves

  • Experience with ERP/MRP systems; Oracle is preferred.
  • Experience with demand planning tools.
  • Experience supporting SIOP/S&OP processes in a manufacturing environment.
  • Advanced proficiency in Microsoft Office applications, especially Excel.
  • Experience with Power BI or other analytics/reporting tools.
  • Strong analytical, problem-solving, and cross-functional coordination skills.
  • Experience with scenario planning, inventory analysis, and executive reporting.
  • APICS/ASCM certification such as CPIM or CSCP.
  • Experience in aerospace, defense, or complex manufacturing environments.
  • Production planning experience.
  • Ability to operate effectively within a fast-paced team setting.
  • Experience or interest in Operations, Procurement, Scheduling, and Engineering value streams.
  • Willingness to learn MRP, MES, Delmia, ASCP, Oracle EBS, and Microsoft Office tools.
  • Ability to take initiative and operate tactically in day-to-day planning as well as strategically in long-range planning and process improvement efforts.

Responsibilities

  • Develop and maintain short-, mid-, and long-range demand plans using historical trends, bookings, backlog, customer signals, market intelligence, and cross-functional business assumptions.
  • Translate demand inputs into actionable planning outputs that support SIOP and operational decision-making.
  • Support and facilitate the monthly SIOP cycle by preparing demand review inputs, coordinating cross-functional alignment, documenting assumptions, and helping reconcile demand plans with supply, inventory, capacity, and financial objectives.
  • Identify and communicate risks, gaps, and opportunities requiring management attention.
  • Partner with Sales, Program Management, Operations, Supply Chain, Manufacturing, and Finance to develop consensus forecasts and delivery assumptions.
  • Ensure demand inputs align with business strategy, contractual commitments, and operational capabilities.
  • Support onboarding new programs, products, or demand streams into planning systems and processes.
  • Identify risks and opportunities and support balanced decisions related to capacity, inventory, and customer commitments.
  • Analyze forecast performance, support scenario planning, and facilitate actions to improve forecast accuracy and execution alignment.
  • Load and maintain forecasted demand within the ERP system.
  • Perform root-cause analysis on forecast variances and recommend corrective actions to improve planning effectiveness.
  • Support continuous improvement initiatives related to demand planning methods, tools, data quality, business processes, and system utilization.
  • Contribute to scenario planning, recovery planning, process documentation, and other assigned ad-hoc projects.
  • Obtain and maintain a U.S. security clearance.
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