Overview: The position of this job is to perform an optimized production scheduling and all raw materials replenishment planning & procurement order operation for owned Latex manufacturing facility at Merak Indonesia to realize domestic & ex-Merak customer orders fulfillment, and meet assigned the target from business, Supply Chain.**Responsibilities**:- Conduct day-to-day production scheduling following monthly S&OP balance decision, monitoring the daily out-put to ensure local & ex-Merak customer orders fulfillment.- Develop raw materials and monomers (SM/BD) replenishment plans, processing PR / PO transition to internal & external vendors. Track material on time / in full delivery and escalate supply risk.- Control Merak inventory level / Slow moving items to achieve working capital target.- Take initiative and work closely with cross functions to realize Merak demand & supply optimization. And implement improvement projects to contribute on supply chain cost reduction.- The planner represents the supply chain function on the area sales and site operation team meeting on a monthly / Quarterly basis. As a member of this cross functional team, the planner is accountable for taking actions specific to supply & demand balance, service costs that contribute to the overall profitability of the businessQualifications:- Minimum education is a Bachelor degree, in a chemical industry / Chemical Engineering / Supply chain management / Logistics or computational skills (e.g. Mathematics and certain Sciences) is preferred- 3 years plus equivalent working experience of supply chain, production & materials planning / logistics or chemical production background to be nice- Fluent oral and written in English- SAP / ERP system background, proficient in Microsoft office and computer skills- Strong interpersonal communication, teamwork and problem solving skill