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 Waste Engineer who will be responsible for supporting the delivery of waste management requirements across the Programme Resilience workstream. This workstream comprises a portfolio of projects designed to enhance programme resilience, remove single-point vulnerabilities, and accelerate mission delivery.

Working closely with the Workstream Lead and Project Manager, the Waste Engineer will provide specialist waste management expertise throughout the project lifecycle, ensuring effective waste strategies are developed and implemented in line with Sellafield arrangements, regulatory requirements, and programme objectives. In some instances, the role will extend beyond project completion to provide ongoing waste management guidance and support.

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

• Provide specialist waste management support to Programme Resilience projects from concept through to commissioning and close-out.

• Develop, review, and implement waste management strategies that align with Sellafield governance, environmental standards, and regulatory requirements.

• Advise project teams on waste minimisation, segregation, characterisation, treatment, packaging, transport, and disposal options.

• Work closely with operations, engineering, waste management, safety case, and project stakeholders to ensure waste considerations are integrated into project delivery.

• Identify and develop pragmatic, innovative waste solutions that support programme resilience and operational objectives while maintaining compliance.

• Support project decision-making through informed technical advice, drawing on plant and operational experience.

• Ensure waste management activities comply with relevant site arrangements, safety requirements, and environmental obligations.

• Produce and review waste management documentation, technical justifications, and supporting governance submissions.

• Identify opportunities to optimise waste routes, improve efficiency, reduce waste volumes, and deliver value across projects.

• Support the transition of projects into operations and provide post-project waste management guidance where required.

Here's What You'll Need:

• Significant experience working on nuclear waste management projects within the Sellafield site environment.

• Demonstrable plant-based experience with a strong understanding of operational interfaces and challenges within nuclear facilities.

• Comprehensive knowledge of Sellafield waste management arrangements, processes, waste routes, and governance requirements.

• Experience supporting projects through concept development, design, implementation, commissioning, and handover phases.

• Strong understanding of waste hierarchy principles, including waste minimisation, segregation, characterisation, treatment, and disposal.

• Ability to challenge conventional approaches and develop innovative, compliant waste management solutions.

• Experience working effectively within multidisciplinary project teams.

• Strong stakeholder engagement and influencing skills across operational, engineering, waste management, and project functions.

• Ability to provide technically robust advice that supports project delivery and optimises waste outcomes.

• Previous experience supporting Legacy Ponds and/or hazard reduction programmes at Sellafield.

• Strong technical writing and communication skills, including the production and review of waste management documentation and technical reports.

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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