Prepare and review cost estimates, budgets, bills of quantities (BOQ), and tender documents Conduct quantity take-offs and verify measurements from drawings, specifications, and site conditions. Manage the tendering and procurement process, including reviewing quotations and preparing commercial comparisons. Evaluate contractor and subcontractor bids and provide commercial recommendations. Prepare, review, and administer interim payment applications and payment certificates. Monitor project costs against approved budgets and provide regular cost reports and forecasts. Manage variations, change orders, claims, and extensions of time from a commercial perspective. Prepare and review final accounts with contractors and subcontractors. Monitor material, labor, and subcontract costs to identify potential cost overruns. Conduct regular site visits to verify progress and quantities. Participate in contract negotiations and support the preparation of commercial agreements. Coordinate with internal site engineer, project engineer and reports to CEO & Project Director.