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Senior Commercial Manager
About Assystem’s Nuclear Legacy
Assystem is one of the top three independent nuclear engineering firms globally, with over 60 years of experience in highly regulated sectors. Specialising in supporting public and industrial stakeholders, we deliver complex and strategic infrastructure projects under demanding safety and security requirements.
With 8,000 experts across 13 countries, we cover the entire project lifecycle—engineering, project management, and digital solutions—ensuring excellence from start to finish.
Job Opportunity: Commercial Manager (Fusion & Modular Nuclear Business Unit)
🚀 At a Glance 🚀 Join us to shape the future of global nuclear energy! We are seeking an experienced Commercial Manager to lead and optimise the commercial success of nuclear new build & SMR programmes. You will play a pivotal role in managing high-value, complex contracts—bridging teams, regulators, clients, and supply chain partners—to deliver commercial alignment with programme objectives.
Key Responsibilities
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End-to-End Commercial Lifecycle Leadership
- Oversee commercial activities from Early Contractor Involvement (ECI) and procurement through execution to final account settlement.
- Ensure rigorous governance, risk management, and value optimisation across entire nuclear projects.
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Contract Administration & Risk Mitigation
- Manage compensation events, change control, and claims in line with NEC (New Engineering Contract) or equivalent frameworks (NEC3/NEC4).
- Develop claims avoidance and resolution strategies to safeguard project value and schedules.
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Strategic Procurement & Supplier Engagement
- Lead or contribute to procurement strategies that align with project timelines and risk allocation.
- Interface with Tier 1 contractors and nuclear supply chain partners; ensure optimal sourcing, packaging, and commercial structuring.
- Allocate and monitor commercial risks and opportunities, including regulatory hurdles and contractor performance.
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Reporting, Analysis & Dispute Resolution
- Support monthly commercial reporting, performance analysis, and remedial action planning.
- Mediate contractual disputes with suppliers and contractors effectively.
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Collaborative & Strategic Decision-Making
- Work closely with engineering, project controls, legal, and procurement teams to drive integration and delivery excellence.
- Provide commercial insights for bid development (pricing, risk allocation, contract strategy).
Why Work at Assystem?
💡 Shape the energy future while contributing to breakthrough projects in a dynamic and collaborative environment.
💰 Benefits include:
- Pension schemes: 8% employer contribution + 4% personal.
- Generous leave: 25 days annual leave + bank holidays + flexibility to adjust/increase days.
- Professional fees reimbursed
- Flexible working tailored to your needs.
- Employee referral scheme.
Qualifications & Experience Requirements
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Essential Criteria
- Proven expertise in commercial management for nuclear new build, SMRs, or similar highly regulated programmes (e.g., infrastructure, defence).
- Deep NEC contract experience (NEC3/NEC4) in high-stakes environments.
- Track record in high-value contract administration, including Tier 1 supplier management.
- Skills in cost forecasting, commercial reporting, and risk/claims management.
- Degree-qualified (or equivalent) in Quantity Surveying, Commercial Management, or related discipline (desirable).
Core Competencies
- Commercial acumen with nuclear regulatory& regulatory diligence able to drive strategic decisions.
- Experience in large-scale, complex programmes (power generation, infrastructure).
- Ability to influence senior stakeholders and lead commercial strategies.
- Analytical rigor with a focus on risk mitigation and value optimisation.
- Collaborative leadership and exceptional delivery mindset.
About Our Values & Culture
Assystem is a diverse, inclusive organisation where differences in perspective drive innovation and boldness. Skills, passion, and the audacity to challenge norms define your impact.
Recruitment Information
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🌍 Join us in moving forward the world’s energy landscape, together!
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