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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
The Decommissioning Alliance (TDA) is a strategic partnership, operating within the DNWP framework and delivering critical decommissioning work at Sellafield, including the UK’s most challenging Legacy Ponds facilities. As a key partner within DNWP, TDA contributes to Sellafield Ltd.’s mission while ensuring communities, supply chains, and stakeholders benefit from meaningful, measurable Social Value outcomes.
An opportunity has arisen for an experienced Sub Project Manager to join our Project Management Team, supporting the delivery of a key project at Sellafield. Working closely with the Asset Care Lead, client, and multi-disciplinary teams, you will play a vital role in ensuring projects are delivered safely, efficiently, and to programme objectives.
This position offers an opportunity to make a measurable impact in a complex and fast-paced nuclear environment, requiring the ability to deliver high-quality outcomes while managing multiple priorities and stakeholders.
Key Responsibilities
Support project planning, scope definition, scheduling, and governance.
Manage stakeholder communication and expectations.
Coordinate multi-disciplinary teams and project activities.
Assist with budget, resource, and cost management.
Identify and manage project risks, issues, and change requests.
Monitor progress against milestones and quality requirements.
Produce project reports and maintain project documentation.
Ensure compliance with company procedures and industry regulations.
Here's What You'll Need:
Project management experience within engineering, construction, or nuclear sectors.
Strong understanding of project planning, reporting, and delivery.
Experience working with planning and cost engineers.
Excellent communication, organisational, and stakeholder management skills.
Proactive approach with the ability to work effectively across diverse teams.
Able to obtain Security Clearance (SC).
British Sole National status.
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 in everything we do. We know that if we are inclusive, we’re more connected, and 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.
We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit www.vercida.com 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.
If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.
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