Verify Purchase Request (PR) detail created by Requestor and convert into Purchase Order (SAP PO); manage, review, update and maintain PO until they are closed. Ensure POs' Approvers approval flow in SAP on time. Identify and select vendors to procure goods and/ or services meeting criteria of price, quality, availability and delivery dates. Establish and maintain supplier relationships and monitor supplier performance. Negotiate, source and develop a pool of alternate suppliers' sub-contractors to reduce cost and lead time. Review, monitor, prepare and perform database maintenance, report & record, accuracy of performance activities, OTD and cost analysis. Coordinate with Finance department with regards to suppliers' invoice and payment issues.