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Senior Commercial Manager

Job in Greater London, London, Greater London, W1B, England, UK
Listing for: Amentum
Full Time position
Listed on 2026-06-23
Job specializations:
  • Management
    Operations Manager, Program / Project Manager
  • Engineering
    Operations Manager
Salary/Wage Range or Industry Benchmark: 60000 - 80000 GBP Yearly GBP 60000.00 80000.00 YEAR
Job Description & How to Apply Below
Location: Greater London

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive.

Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all.

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family‑friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. Work‑life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part‑time and flexible working hours, patterns and locations to suit you and our business.

About

The Opportunity

Nuclear Power Programmes has been formed with the vision to support positive change and help shape the future of Nuclear Power. Operational throughout the UK and across continental Europe, we are seeking to expand our team on a variety of nuclear projects, which range in technologies and that find themselves at different stages of their development. To do this, we are seeking to continuously employ talented individuals to join our diverse team that are excited about nuclear projects and are committed to Net Zero, and Energy Security.

In both client facing and internal roles we are delivering major programme and project management capabilities throughout the project lifecycle. We are driving to deliver safe, high quality and to time solutions by thinking innovatively and working collaboratively.

Responsibilities will include
  • Supporting the delivery of strategy and the subsequent implementation of all commercial and procurement activities.
  • Managing commercial negotiations in major public sector competitions.
  • Managing all aspects of negotiating, agreeing, researching and compiling complex business investments.
  • Managing and coordinating internal and external stakeholders.
  • Collaborating with the wider NPP Commercial function and the project team on all commercial and procurement activities.
  • Defining, agreeing and implementing commercial principles consistently throughout complex documents and processes.
  • Planning and managing technical consistency readiness reviews across a cross-functional team.
  • Managing commercial issues on projects covered by European public procurement directives and International, European and state nuclear regulations.
  • Implementation of nuclear safety and nuclear quality.
  • Maintaining Ethical Standards.
Here’s What You’ll Need

We’re looking for a proven and experienced Senior Commercial Manager, with experience in FIDIC and NEC 3 & 4 suite of contracts and major projects, as well as knowledge of UK law and its impact upon the contracts and commercial function. You’ll also demonstrate a good understanding of procurement, contract performance measurement, risk, change and claim management.

You’ll be able to work across multiple discipline teams to develop, implement, and operate commercial strategies and contractual agreements. You’ll have a big‑picture view and be able to develop and execute innovative approaches to commercial delivery for the benefit of the project.

Member of the RICS / CICES / IOB / CIPS or equivalent professional body is desirable.

If the above sounds like you, then we’d love to hear from you!

Our Culture

Our values…

Position Requirements
10+ Years work experience
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