Quantity Surveyor

Decima International is a professional services company, providing project management and controls services to clients in the United States and the Middle East. Our mission is to become the premier professional services provider across all industry sectors we are engaged in. To accomplish this, Decima International’s founders established a simple yet powerful formula:

Approach each client engagement as a partnership
, create an environment that attracts the most talented professionals and allows them to flourish, and regulate growth to maintain excellence in our service standards.

If you are interested in a long and rewarding career working with high-profile clients on some of the most challenging projects in the world, then Decima is where you belong. At Decima, you will be able to explore incredible growth and professional development opportunities.

We are seeking a detail-oriented and highly motivated Quantity Surveyor to support cost management, quantity measurement, commercial administration, and change control activities for a large-scale data center project in Riyadh, Saudi Arabia.

The ideal candidate will have experience working on large-scale construction, infrastructure, industrial, or mission-critical projects and will be capable of supporting project teams with measurement, valuation, cost tracking, and commercial documentation throughout the full project lifecycle.

You will play a key role in supporting financial discipline across the project by ensuring quantities, costs, variations, progress claims, and commercial records are accurately reviewed, tracked, and reported in alignment with project requirements.

• Support quantity surveying and commercial management activities across the project, ensuring accuracy, consistency, and compliance with contract requirements.
• Prepare, review, and validate quantity take-offs, bills of quantities, measurements, and cost-related documentation.
• Review contractor payment applications, progress claims, invoices, and supporting documents to verify accuracy against completed works, contract terms, and approved quantities.
• Support the evaluation of change orders, variations, claims, and commercial impacts, including quantity verification and cost substantiation.
• Assist in preparing cost reports, budget updates, payment trackers, variation logs, and commercial dashboards for project leadership and client review.
• Coordinate with cost control, planning, procurement, contract, engineering, and construction teams to validate quantities, progress, and cost impacts.
• Review drawings, specifications, BOQs, scope documents, and contract documents to support accurate measurement and valuation.
• Conduct site visits and progress inspections to verify installed quantities and support payment and variation assessments.
• Maintain accurate records of measurements, payment applications, change orders, claims, correspondence, and commercial documentation.
• Support the preparation of estimates, forecasts, cost-to-complete updates, and financial projections based on project progress and approved changes.
• Assist in identifying commercial risks, cost discrepancies, scope gaps, and potential variations, escalating issues to project leadership when required.
• Support contract administration activities by reviewing commercial terms, deliverables, payment milestones, and supporting documentation.
• Participate in commercial meetings, progress reviews, cost workshops, and contractor coordination sessions.
• Ensure quantity surveying activities align with internal policies, client standards, contract requirements, and industry best practices.

Required qualifications:

• 7+ years of quantity surveying, cost management, commercial management, or construction cost control experience within large-scale construction, infrastructure, industrial, or mission‑critical projects.
• Bachelor’s degree in Quantity Surveying, Civil Engineering, Construction Management, Commercial Management, or a related technical field.
• Prior experience working on data center, mission‑critical, industrial, infrastructure, or large-scale building projects.
• Strong knowledge of quantity take-offs, BOQs, measurement…