Senior Estimator

About the Role

Key Responsibilities

• Develop and prepare detailed capital cost estimates for brownfield petrochemical plant modifications, revamps, debottlenecking projects, and facility upgrades.
• Prepare conceptual, feasibility, FEED, and definitive estimates for projects executed within existing operating facilities.
• Review engineering documents, site surveys, P&IDs, plot plans, equipment lists, and material take-offs to ensure accurate cost development.
• Estimate costs associated with tie-ins, hot work, demolition, temporary facilities, plant shutdowns, turnarounds, and construction within live operating environments.
• Evaluate labor productivity impacts, access restrictions, permitting requirements, and operational constraints typically encountered in brownfield projects.
• Develop indirect cost estimates including construction management, temporary facilities, scaffolding, insulation removal and reinstatement, and site support requirements.
• Support risk and contingency analysis by identifying brownfield-specific execution challenges and estimating their potential cost impact.
• Coordinate closely with engineering, operations, maintenance, turnaround, and project controls teams to validate project scope and estimate assumptions.
• Analyze contractor and vendor quotations, benchmark costs against historical projects, and provide recommendations to improve estimate accuracy.
• Prepare estimate basis documentation, cost reports, management presentations, and investment-grade estimates to support project approvals and funding decisions.

Qualifications and Experience

• Bachelor's Degree in Engineering (Mechanical, Chemical, Civil, Electrical, or related discipline).
• Minimum 12-15 years of cost estimating experience in petrochemical, chemical processing, refining, or industrial manufacturing projects.
• Minimum 5 years of direct experience supporting brownfield modifications, revamps, debottlenecking, or plant expansion projects.
• Strong understanding of plant turnaround and shutdown activities.
• Experience preparing estimates during Conceptual, FEED, and Detailed Engineering phases.
• Proficiency with cost estimating software such as ACCE, Cleopatra, CostOS, Prism, or equivalent.
• Knowledge of AACE estimating classifications and recommended practices.
• Experience supporting EPC, EPCM, and self-perform project execution models.
• Professional certification such as AACE CCP, CEP, PSP, or equivalent is preferred.
• Preferred Experience
• Brownfield petrochemical facilities.
• Ethylene, propylene, polymers, specialty chemicals, and downstream processing plants.
• Plant expansion and debottlenecking projects.
• Major shutdowns and turnaround projects.
• Capital projects exceeding USD 100M.
• Middle East industrial project experience.

Work Environment

• This is a full-time position based in Al Jubail, Eastern Region, focusing on projects within established industrial facilities.

Application Process

• Candidates meeting the specified requirements are encouraged to apply for this Senior Estimator role.