Manufacturing Cost Controller / Cost Accounting Manager

Key Responsibilities • Build and maintain SKU-level tire manufacturing cost visibility, including BOM, material cost, labor cost, variable cost, fixed cost allocation, and overhead. • Analyze cost variance by product, size, material, process, production line, and supplier. • Support Design to Cost activities by identifying cost reduction levers from material usage, material grade, process cost, yield, scrap, and specification differences. • Work with production, technical, procurement, and quality teams to validate cost assumptions and quantify impact of cost-down ideas. • Benchmark internal cost structure against competitor or market references where possible, without using confidential third-party information. • Develop cost models and reporting routines to support management decisions on product profitability and cost competitiveness. • Support budget, standard cost setting, cost simulation, and financial evaluation of sourcing, material, and design changes. Professional Skills • Professional Knowledge - Manufacturing cost accounting, product costing, standard cost, and plant controlling -BOM costing, material cost, process cost, labor cost, overhead allocation, and variance analysis -Factory cost structure, yield, scrap, productivity, and cost simulation -ERP/SAP costing module, management reporting, and cost model development -Tire cost structure • Communication & Negotiation - Ability to translate financial/cost analysis into practical actions for production, technical, procurement, and management teams - Ability to challenge cost assumptions and align cross-functional stakeholders with facts - Practical communication skills in Thai and English; Japanese company experience is a plus • Problem Solving -Identify root causes of high cost by SKU, material, process, production line, and supplier -Build fact-based cost reduction hypotheses and quantify potential impact -Link cost data with practical Design to Cost and sourcing decisions Qualifications • Bachelor's degree or above, Major Accounting, Finance, Industrial Engineering, Manufacturing Management, Business Administration, or related field • Must-have: 8+ years of cost accounting, plant controlling, manufacturing finance, or product costing experience in tire industry. • Experience with tire/rubber product costing, BOM-level cost breakdown, standard cost system, ERP costing module, and cross-functional cost reduction PJs; English capability preferred

Company: JST Group Hire Type: Permanent Openings: 1