Assistant Manager, S&OP

Please note:
This position requires fluency in Korean.

Assistant Manager, Sales & Operations Planning (S&OP) owns the end-to-end S&OP cycle, building accurate demand forecasts and aligning them with supply, inventory, and financial plans across Sales, Marketing, Supply Chain and Finance. This role drives the monthly S&OP cadence – demand review, supply review, pre-S&OP, and executive S&OP – producing a single, reconciled operating plan that optimizes inventory levels, improves forecast accuracy, reduces cost, and meets dealer and customer demand.

This role is highly analytical and planning-focused, requiring a strong command of data and forecasting tools to drive reliable, actionable insights that optimize inventory levels, reduce costs, and meet customer demand. The ideal candidate is detail-oriented, intellectually curious, and eager to grow within a collaborative planning environment.

• Develop and maintain the consolidated demand plan by product line, channel, and region, blending statistical baselines with sales and marketing intelligence.
• Generate and refine statistical forecasts (moving averages, exponential smoothing, regression) and incorporate promotions, NPI launches, and seasonality.
• Track and continuously improve forecast accuracy (MAPE/bias), conducting root-cause analysis on misses and driving corrective actions.
• Consolidate dealer order intake, sales pipeline, and field input into a single demand signal for the planning horizon.

• Balance demand against supply by aligning production schedules, HQ allocations, and inbound shipments from Korea with the demand plan.
• Set and monitor inventory targets and safety-stock policy across finished goods and parts; manage aging, excess, and obsolescence risk.
• Coordinate replenishment and distribution across NA locations (Rome, Bloomsburg, Tyler, Tigard, and TYM Canada) to optimize service and carrying cost.
• Identify supply constraints, capacity gaps, and lead-time risks, and propose mitigation through the S&OP process.

• Facilitate the monthly S&OP cadence - demand review, supply review, pre-S&OP, and executive S&OP - owning the calendar, agenda, and decision log.
• Reconcile sales forecasts, production capacity, and inventory strategy into one unified operating plan, surfacing gaps and trade-offs for leadership decision.
• Lead consensus-building across Sales, Marketing, Supply Chain, Finance, and HQ to resolve demand-supply imbalances.
• Maintain S&OP governance, assumptions, and version control, ensuring a clear audit trail from demand signal to committed plan.

• Design and maintain S&OP dashboards covering demand, supply, inventory health, forecast accuracy, fill rate, and plan-attainment KPIs.
• Prepare the executive S&OP package and board-/HQ-level reporting, including bilingual (KOR/ENG) materials where required.
• Translate plan performance into actionable insights for senior leadership, framing demand-supply decisions in operational and financial terms.
• Partner with Finance to connect the demand/supply plan to revenue, margin, and working-capital outlooks (dealer floor plan, inventory turns).

• Build what-if and scenario models for demand shifts, supply disruptions, and capacity constraints to inform contingency planning.
• Assess the operational impact of tariff exposure (Section 232 / 301 / IEEPA), FX volatility (KRW/USD/CAD), and input-cost movements on plan and inventory.
• Drive continuous improvement of S&OP tools, data quality, and process maturity; support ERP/planning-system enhancements (SAP, Salesforce).
• Support competitive and market analysis (AEM/EDA registration data) to sharpen demand assumptions and market-share planning.

• Korean fluency is required.
• Bachelor’s degree in business administration, Supply Chain Management, Operations Management, Statistics, or a related field required.
• 10+ years of progressive experience in strategic & demand planning, sales forecasting, S&OP, or supply chain planning roles.
• Demonstrated…