Cost Estimator

Role Overview

The Cost Estimator is responsible for preparing accurate, competitive, and commercially sound cost estimates for EPC tenders, proposals, RFQs, and other commercial opportunities. This includes evaluating quantities, vendor quotations, labor, equipment, logistics, indirect costs, risks, taxes, and other commercial requirements.

Responsibilities

• Review ITTs, RFQs, BOQS, MTOs, drawings, specifications, scope of work, and commercial conditions to establish the estimating basis.
• Develop detailed cost estimates for fabrication, procurement, construction, installation, engineering, logistics, and other applicable EPC scope.
• Extract and quantify materials, equipment, labor, and services from MTOs, drawings, specifications, and tender documents.
• Prepare and issue RFQs to vendors/subcontractors for required materials, equipment, and specialist services.
• Receive, analyze, and compare vendor/subcontractor quotations; identify exclusions, deviations, assumptions, validity, lead time, and commercial risks.
• Develop indirect cost provisions including supervision, site/fabrication overheads, project support, mobilization/demobilization, and other applicable project costs.
• Maintain clear estimating assumptions, exclusions, qualifications, and basis-of-estimate records for each tender.
• Support bid clarifications by providing cost impact assessments for technical and commercial changes, options, and client clarifications.
• Update estimates following revised drawings, MTOs, addenda, clarifications, vendor quotations, or changes in scope.
• Conduct estimate checks, arithmetic verification, and cross-checks against historical/project cost data and available benchmarks.
• Support preparation of the commercial price sheet, pricing schedules, and tender submission documents within required deadlines.
• Maintain an organized database of vendor quotations, historical rates, productivity rates, material prices, and other estimating references.
• Ensure all estimating activities comply with company procedures, tender instructions, approved commercial strategy, and confidentiality requirements.

Requirements

• Bachelor's degree/HND in Quantity Surveying, Engineering, Construction Management, Cost Engineering, Economics, or a related discipline.
• Professional certification/membership in Quantity Surveying, Engineering, Cost Engineering, or a related professional body is an advantage.
• 3–8 years' relevant experience in cost estimating, tendering, commercial proposals, or project cost control, preferably within EPC, oil & gas, fabrication, construction, or engineering services.
• Strong ability to read engineering drawings, BOQS, and MTOs and convert technical scope into cost.
• Practical experience with vendor/subcontractor RFQs, quotation analysis, and price comparison.
• Good knowledge of materials, fabrication, construction activities, labor, equipment, and logistics costing.
• Strong Excel skills, including formulas, lookups, data analysis, and structured estimating workbooks.
• Ability to work with tender deadlines, multiple estimates, and changing scope while maintaining accuracy.
• Good commercial awareness, attention to detail, analytical ability, and documentation discipline.

How to Apply Send Resume to: recruitment@marconi.ng