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 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.
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.
The Role
The Decommissioning Alliance (TDA) are looking to recruit a Mechanical Works Controller to support the ongoing safe and efficient delivery of Construction packages of work, ensuring that Mechanical construction activities are effectively planned, coordinated, and delivered in accordance with project objectives, regulatory obligations and stringent safety standards.
The Mechanical Works Controller will play a vital role in the successful delivery of construction activities within the TDA framework. By combining strong technical knowledge, effective coordination, and a commitment to safety and quality, the Mechanical Works Controller ensures that all works are executed to the highest standards while supporting programme objectives and continuous improvement across the site.
As a Mechanical Works Controller you will already have:
1. Experience working on Construction Projects within a highly regulated environment
2. Mechanical Discipline Qualification
3. IOSH Managing Safely (or equivalent recognised health & safety qualification)
4. Knowledge of Safe System of Work
5. Proven experience in the delivery, supervision, and coordination of complex construction activities
6. Good understanding of safety culture, regulatory compliance, and CDM requirements
Our Culture
Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration.
We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.
When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.
We partner with, for greater online accessibility please visit 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.