Key Accountability: Prepare accurate and competitive cost estimates and tender proposals for Electrical & Instrumentation (E&I) works in the oil & gas / petrochemical sector. Ensure timely submission of tenders and proposals in compliance with client requirements and company standards. Support the Tender & Proposal team in securing profitable projects through sound costing and pricing strategies. Safeguard the accuracy, consistency and confidentiality of costing and pricing information. Duty and Responsibility: Review tender /RFQ documents, drawings, specifications and scope of work for E&I projects. Attend Site Visit/ Site Briefing/ clarification meetings. Prepare detailed cost estimation covering materials, manpower, equipment, subcontractor works and overheads. Source and evaluate quotations from suppliers and subcontractors for E&I materials and services. Prepare Bill of Quantities (BOQ), pricing schedules and cost breakdown for tender submission. Liaise with engineering, procurement, project and operations teams to obtain technical and commercial inputs. Identify commercial and technical risks, clarifications and assumptions to be raised during tender preparation. Compile, format and submit complete tender/ proposal packages within deadlines set by clients or management. Maintain organized records of tenders submitted, costing history and pricing databases for reference, and support post-tender clarifications and negotiations. Review contract clauses and highlight key points to superior and management. Review insurance, bond and liability requirements and highlight key points to superior and management. Read and understand all legal contract clauses relevant and important to the tender. Interact and update client and management regularly on the work progress and perform any other duties directed by immediate supervisor. Qualification and Experience Required Diploma or Degree in Electrical Engineering, Instrumentation Engineering or related discipline Minimum 4 years of relevant experience in costing, estimation or tender/ proposal preparation, preferably within the oil & gas or petrochemical industry. Sound knowledge of E&I equipment, materials and installation works. Proficient in Microsoft Excel and costing/ estimation software of tools. Good analytical, numerical and problem-solving skills with high attention to detail. Strong communication and coordination skills to liaise with internal teams, suppliers and clients. Able to work under tight deadlines and manage multiple tenders concurrently.