Senior Quantity Surveyor (Mechanical)

About the role

We are looking for a Senior Quantity Surveyor (Mechanical) to lead the commercial and quantity surveying functions on large‑scale Oil & Gas EPC projects in Abu Dhabi. The role will focus on mechanical and piping works, ensuring accurate measurement, cost control and effective subcontract administration throughout the project lifecycle.

Key responsibilities

• Measure, verify and reconcile mechanical quantities against IFC drawings, MTOs, BOQs and approved variations.
• Administer piping measurements, including diameter‑inch and weld‑inch calculations.
• Quantify and track piping supports, valves, equipment, skids, tanks and related mechanical installations.
• Monitor fabrication, erection, welding, NDT, hydro‑testing, insulation, painting and mechanical completion activities.
• Prepare, evaluate and negotiate variation orders, change requests, dayworks and rework claims.
• Assess subcontractor interim valuations, back‑charges and final accounts.
• Support cost reporting, earned‑value analysis and commercial forecasting.
• Develop records to support extensions of time and commercial claims.

Required profile

• Minimum 15 years of experience in mechanical quantity surveying on oil & gas, refinery or petrochemical EPC projects.
• Strong commercial acumen with proven ability to manage variations, claims and final account settlements.
• Excellent knowledge of mechanical piping systems, supports and equipment installation.
• Proficiency in using quantity tracking tools and preparing detailed commercial reports.

Required skills

• Rate build‑up and pricing
• Hydrotesting and system reinstatement
• Claims preparation and assessment
• Welding and NDT activities
• Final account settlement
• Variation and change order management
• Subcontract administration
• Mechanical piping quantity surveying
• Quantity measurement and valuation
• Pipe supports and mechanical equipment installation