Commissioning Test Manager

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.

Role Overview:  

As a Commissioning Test Manager, your primary responsibilities involve overseeing the operational readiness verification of newly installed or modified Structures, Systems & Components. This includes ensuring compliance with Start Up procedures, Site License Conditions, and adherence to statutory and regulatory standards for safe and reliable operation.

Key duties involve collaborating with various stakeholders across project delivery teams and external contractors to ensure operational readiness of People, Plant & Procedures in alignment with client requirements. This requires effective Leadership, Communication, Coordination, and integration to deliver high-quality results.

The Commissioning Test Manager shall support the client Start Up Manager to carry out managerial roles in leading a Start Up Team in the delivery of assigned Start Up projects in a safe and effective manner.

As a Commissioning Test Manager some of your Key Responsibilities could include:

• Ensuring safety as the highest priority on the project, striving towards Zero Harm, and act as a role model in all aspects of safety, nuclear, radiological, conventional, and environmental safety.

• Planning, balancing and prioritising Start Up resources to support successful project delivery and prioritisation of workload in line with project requirements.

• Provide support and input to multi discipline design reviews, HAZCONs HAZOPs, HAZANs, and input into risk management, contract, schedule and estimates. 

• Support the development and implementation of procedures, ensuring compliance with Site Licence Conditions, legal and statutory requirements.

• Develop Start Up Strategies, identifying Resource Requirements, cost profiling and collaboration with the project team to initiate and manage sanctioning of future project costs.

• Identifying and implementing Intelligent Customer arrangements where required

• Identifying audits and assessments to ensure that the required standards are maintained

• Developing and implementing stakeholder management to optimise delivery, to obtain permissions and to mitigate risks.

• Support Commissioning Test and Operability Team Leaders with the coordination and deployment of a multi disciplined Start Up Team

As a Commissioning Test Manager you must have a strong understanding of commissioning arrangements in line with Nuclear Site Licence Condition 21, supported by experience delivering commissioning work scopes to agreed strategies in a timely and cost effective way. Demonstrate proactive, balanced leadership in all aspects of safety nuclear, radiological, conventional, and environmental while ensuring integration with wider project processes. 

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 VERCIDA, 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.