Purchaser

About the role

Diamond Power Services S.E.A. Ltd. (DPSEA) is seeking an experienced Purchaser to join our team in Samut Sakhon. This full-time position plays a key role in supporting our aftermarket business by sourcing spare parts, equipment, and services while ensuring the best balance of cost, quality, delivery, and supplier performance. You will work closely with Sales, Service, Engineering, Logistics, Finance, and international suppliers to support customers throughout Southeast Asia. An engineering background is preferred.

Key responsibilities

• Supplier Sourcing: Identify and develop relationships with local and international suppliers for spare parts, equipment, and technical services.

• Quotation Management: Prepare RFQs, obtain supplier quotations, and evaluate offers based on price, quality, technical compliance, lead time, warranty, and commercial terms.

• Negotiation: Negotiate pricing, delivery schedules, payment terms, Incoterms, warranties, and other commercial conditions to achieve the best value for the company.

• Purchase Order Processing: Issue and manage purchase orders, obtain internal approvals, and maintain accurate purchasing records.

• Order Expediting: Monitor supplier performance, follow up on open orders, and proactively communicate potential delays or supply risks.

• Logistics Coordination: Coordinate shipping arrangements and import documentation, including commercial invoices, packing lists, certificates of origin, and customs-related documents

• Issue Resolution: Resolve delivery discrepancies, non-conforming products, supplier warranty claims, returns, replacements, and credit requests.

• Reporting & Documentation: Maintain supplier databases, quotation records, contract files, purchasing reports, and other procurement documentation.

About you

• Bachelor's degree in Supply Chain Management, Business Administration, Industrial Management, Engineering, or a related field.
• At least 3 years of relevant purchasing, sourcing, or procurement experience, preferably involving industrial equipment, spare parts, maintenance services, manufacturing, power generation, or an aftermarket business.
• Experience working with overseas suppliers, international shipping, import documentation, and Incoterms is preferred.
• Working knowledge of purchasing processes, quotation analysis, negotiation, purchase orders, supplier management, and basic contract terms.
• Good command of written and spoken English and Thai, with the ability to communicate professionally with international suppliers and internal teams.
• Proficiency in Microsoft Excel, Word, Outlook, and purchasing or ERP systems.
• Commercial judgment and ability to evaluate total cost, risk, and value rather than price alone.
• Ability to read basic specifications and learn industrial products quickly.
• Strong planning, follow-up, and accuracy in maintaining reliable records.
• Problem-solving skills to identify supply issues early and drive actions to closure.

About us

As the premier provider of boiler cleaning systems in Southeast Asia, DPSEA brings over 20 years of regional leadership to every project. Having served as the Southeast Asia headquarters for US-based Diamond Power International, we are uniquely positioned to support the power, pulp & paper, and petrochemical industries. We are dedicated to ensuring the Diamond Power equipment operates at peak efficiency through world-class service and field support. Discover more at andritz.com/diamond-power