At Amentum UK and International, we are at the forefront of shaping the future, not just solving problems. Our expertise in engineering, project management, and solutions integration has positioned us as a key collaborator with government entities, delivering intricate and impactful programs around the world. With a strong presence in Saudi Arabia, we are actively involved in critical projects throughout the region. We are spearheading several exciting initiatives, taking on technical responsibilities for programme management, engineering oversight, and construction assurance.

About the Opportunity:

As part of our expanding footprint in the region, we are seeking an experienced Quantity Surveyor to provide client-side commercial and cost management support on a major construction project in Saudi Arabia.

Working closely with the Commercial Manager and Project Manager, you will oversee contractor commercial performance, assess applications for payment, manage change and variation processes, support cost forecasting, and provide clear commercial advice to support project delivery and decision-making.

The successful candidate will bring strong experience working under major construction contracts, ideally NEC4 and/or FIDIC, together with a proactive approach to commercial management, cost control, risk management, and stakeholder engagement.

Key Responsibilities:

Commercial & Cost Management

• Review contractor applications for payment and assess contractual entitlement.
• Verify completed works against contract requirements, project progress, and agreed payment mechanisms.
• Prepare payment assessments and commercial recommendations.
• Monitor project costs, commitments, liabilities, and expenditure against approved budgets.
• Maintain accurate commercial records and reporting.

Change Management

• Assess notified changes, variations, compensation events, and their commercial impact.
• Evaluate contractor quotations, cost submissions, risks, and programme implications.
• Prepare independent estimates and commercial assessments.
• Maintain change registers and ensure approved changes are reflected in project forecasts and contract values.
• Identify emerging commercial risks and opportunities.

Forecasting & Reporting

• Maintain cost reports and forecast final project costs.
• Track actual and forecast expenditure against approved budgets.
• Analyse cost trends, risks, and commercial performance.
• Provide regular commercial reports and recommendations to project leadership.
• Support commercial assurance, governance, and audit activities.

Contract & Commercial Administration

• Support the administration and commercial management of construction contracts.
• Participate in risk management and early warning processes.
• Advise on the commercial implications of project decisions and contract actions.
• Monitor contractual obligations, key milestones, and compliance requirements.
• Build effective working relationships with contractor commercial teams to resolve issues efficiently and proactively.

Stakeholder Management

• Work collaboratively with project controls, engineering, construction, finance, and contractor teams.
• Provide clear commercial analysis and advice to support informed decision-making.
• Present complex commercial matters in a concise and practical manner.

Here’s What You’ll Need:

Essential Experience & Qualifications

• Degree or equivalent qualification in Quantity Surveying, Commercial Management, Construction, Engineering, or a related discipline.
• Proven experience in quantity surveying or commercial management on construction, infrastructure, engineering, or major capital projects.
• Experience administering construction contracts under FIDIC, NEC4, or other recognised international forms of contract.
• Strong understanding of payment mechanisms, change management, cost control, forecasting, and contractor commercial management.
• Ability to assess contractor submissions and provide robust commercial recommendations.
• Strong analytical, negotiation, and reporting skills.
• Excellent stakeholder management and communication abilities.
• Fluent Arabic and English language skills (written and verbal), with the ability to engage effectively with Saudi contractors, consultants, and project stakeholders.

Desirable Experience

• NEC4 ECC experience, particularly Option A contracts.
• Professional membership, or working towards membership, of RICS, CIOB, or equivalent.
• Experience delivering projects within Saudi Arabia, the Middle East, or other international major-project environments.
• Experience working in a client-side, PMC, or programme management environment.

Our Culture:

Our values stand on a foundation of safety, integrity, inclusion, and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees. 

We aim to embed inclusion and diversity in everything we do. We know that if we are inclusive, we are more connected, and if we are diverse, we’re more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you’re pregnant or on family leave. This is reflected in our wide range of Global Employee Networks centred on inclusion and diversity.

We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit  Promoting Equality & Diversity in Jobs and Career - VERCIDA  to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role. 

Your application experience is important to us and we’re keen to adapt to make every interaction even better. We welcome feedback on our recruitment process and if you need more from us before deciding to join us then  please contact Andrew Duckworth.