Executed end-to-end procurement activities for Oil & Gas and Transmission & Distribution (T&D) projects, covering Mechanical, Rotary, Piping, tower parts, fasteners, tools & plants, and accessories. Managed vendor sourcing, RFQs, ITBs, RFPs, and conducted technical bid evaluations (TBEs). Developed and maintained a supplier database of 1200+ vendors to finalize cost-effective and compliant commercial offers. Conducted reverse auctions using SAP Ariba to ensure transparency and cost optimization. Created and released Purchase Orders in SAP and Ariba in line with technical and commercial requirements, and coordinated order execution including expediting, inspections, logistics, GRN processing, and timely site deliveries. Monitored vendor performance, resolved supply chain issues, and coordinated with finance and logistics teams for billing and payment follow-ups. Prepared monthly and quarterly MIS reports, procurement trackers, and managed multiple subcontract and mechanical packages.