Costing Manager (Heavy Machinery), Samut Prakan Thailand

Monroe Consulting Group, an award-winning executive recruitment firm, is recruiting on behalf of a prominent and highly established organization within the heavy machinery in manufacturing industry. They are seeking a Costing Manager to lead product costing operations, drive cost accuracy, and support financial decision-making across the manufacturing plant. This position is based in Samut Prakan, Thailand.

The Costing Manager will lead end-to-end product costing and inventory management across the manufacturing plant. This role offers the opportunity to drive financial accuracy and operational excellence through standard cost analysis, variance reporting, and cross-functional business partnering within a high-standard heavy machinery manufacturing environment.


Job Responsibilities

  • Lead and manage all costing activities including standard cost roll, BoM and routing validation, overhead absorption, cost simulation, and standard cost y-o-y change analysis with detail factors

  • Review and analyze PPV, MUV, other price variance, yield and scrap analysis, and ensure accuracy of inventory valuation, month-end closing and OSMI provision

  • Provide sales, pricing, gross margin, profitability analysis and accurate cost data for annual budget (AOP) and forecast

  • Perform variance analysis (Standard vs Actual) and identify root cause of production, material and finish good variance

  • Support management in evaluating cost impact of new products, formula changes and VAVE/BB productivity including process improvement projects and pricing decisions

  • Manage local content calculations and ensure compliance with ASEAN and international trade agreements such as Form D, E and other certificate of origin requirements

  • Strengthen cost control processes, ensure compliance with accounting standards, company policies, SOX and internal controls, and support internal and external audit activities

  • Drive continuous improvement in costing processes, reporting automation, and system enhancement projects while supervising and developing the costing team

Job Requirements

  • Academic background in Accounting, Finance or related fields

  • Experience in Costing with a background in accounting and/or controlling, preferably within a manufacturing or industrial environment

  • Strong understanding of Standard Costing, MS Office, SAP or Oracle

  • Ability to work independently, under pressure, in timely and accurate manner

  • Analytical mindset with excellent attention to detail and problem-solving skills with strong communication and cross-functional collaboration abilities

  • Good command of English