Commercial Manager / Quantity Surveyor
Confirmed on the employer's own hiring board on Oct 22, 2026. First seen by Alion on Aug 7, 2026. Assystem scores B on the Alion truth index.
Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements.
Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.
As Assystem's PM&C team is growing and we are seeking a Quantity Surveyor to support the delivery of a major defence project. The successful candidate will provide commercial and contractual expertise across the full project lifecycle, ensuring cost management, risk control, procurement support, and commercial governance on complex construction and engineering programmes.
Working within a multi-disciplinary project team, the postholder will play a key role in maintaining commercial performance, providing accurate forecasting, managing change, and supporting successful project delivery in a highly regulated environment.
Key responsibilities included but not limited to:
- Contract Administration for existing contracts, including performing, issuing or managing
- Provide commercial advice to the Contract Leads
- Ensure that all contract timelines are being met by the project team (management of CEMAR)
- Applications for Payment
- General communications under the contract
- Programme submissions, where required
- Forecast submissions
- Change Management
- Early warnings
- Bid support for new call off contracts
- Cost Control
- Reporting
- Support weekly and monthly progress meetings
- Liaise with the client CEMAR Supervisor
- Liaise with the client on Learning from Experience
Interfaces:
- Interface with Contract Leads, Finance, Cost engineering and project controls functions
- Interface with the client and Project Managers
Qualification, Special Skills or Experience:
- Must have strong NEC contract experience, preferably NEC4 Professional Services
- Proficient in Microsoft Excel to at least intermediate level
- Ideally degreed qualified in Quantity Surveying
- Able to manage and prioritise competing priorities
- Working to high levels of accuracy and contract compliance
- Ideally prior CEMAR experience
- Security Clearance will need to be attained for this role
NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future.
NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process.
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.