Senior Materials Planner

Senior Materials Planner

22 Nov 2025
California, Ventura county, 93001 Ventura county USA

Senior Materials Planner

TopDown Automotive is a leading manufacturer and supplier of premium aftermarket convertible tops and automotive interior products. With decades of expertise, TopDown delivers OEM-quality solutions for luxury brands like Mercedes, Porsche, BMW, and Jaguar. Specializing in convertible tops, seat covers, headliners, and upholstery, the company ensures precision, durability, and a perfect fit. Operating across California and South Carolina, TopDown leverages advanced manufacturing technology and skilled craftsmanship to uphold the highest quality standards.

Job Summary

Own day-to-day MRP execution in NetSuite for a high-mix, low-volume automotive/aftermarket environment across multiple plants (Robbins, E‑Z On, GAHH). Convert demand into a stable, time-phased supply plan; release/maintain Work Orders (WOs) and Purchase Orders (POs); protect service while reducing inventory and shortages. Serve as the single point of truth for what starts when, what’s short, and what must change.

Collaborate closely with cross-functional departments, including Inventory and Procurement, to ensure alignment of tasks, priorities, and performance targets.

Key Responsibilities:

Material Requirements Planning / Master Production Schedule Execution

o Configure and run NetSuite MRP (demand plans, planning engine, time fences).

o Maintain planning parameters (lead time, lot size, min/max, safety stock, reorder points) with accuracy.

o Convert planned orders to firm WO/PO; manage pull-ins/pushouts and firming rules.

o Optimize material release timing to avoid both shortages and excess inventory.

Item / BOM / Routings Accuracy

o Partner with Engineering to keep BOMs, alternates, and effective-date cut-ins clean.

o Enforce ECO/ECN cut-in discipline to avoid scrap, rework, and obsolescence.

Shop Readiness & Floor Flow

o Ensure kits/materials are complete before each scheduled start; coordinate backflush vs. issue-to-WO strategies.

o Support Manufacturing Mobile/workflows, labeling, and traveler accuracy.

Supplier & Inbound Coordination

o Send forecasts/releases, supplier OTIF, and commit dates.

o Drive MOQ and lead-time reduction; open alternates and dual-sourcing where risk warrants.

Inventory Health & Policy Execution

o Apply ABC/XYZ policies and stocking strategies by site/plant; maintain reorder and safety levels.

o Identify slow/non-moving and aging materials; lead burn-down or disposition plans.

S&OP & Capacity Alignment

o Provide supply/capacity views for monthly S&OP (18–24‑month horizon).

o Highlight constraints, propose scenarios, and align on frozen/firm/planned time fences.

Data Analysis & Reporting

o Build/maintain saved searches, KPIs, and exception dashboards in NetSuite.

o Measure plan stability, past‑dues, shortages, supplier commits, and parameter drift; run weekly parameter audits.

Required Skills:

Bachelor’s degree in Supply Chain, Business Analytics, Industrial Engineering, or related field.

4+ years in Materials/Production Planning or Master Scheduling (manufacturing; automotive/aftermarket preferred).

Strong expertise in MRP concepts and NetSuite MRP configuration.

Hands-on experience with NetSuite: Demand Planning/MRP, Items/Bins, WO/PO, BOM/Routings, Saved Searches, Dashboards.

Proven results improving OTIF while reducing shortages and inventory

Analytics: Excel (pivots, dynamic arrays, lookups); basic Power BI a plus.

Excellent verbal and written communication skills—able to influence stakeholders at all levels.

Key Performance Indicators (KPI)

Sales Order Fill Rate (Customer OTIF)

Kit-Ready On-Time

Inventory Turns Ratio target

Plan Adherence

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