About the Opportunity
Amentum is expanding its ability to support a growing portfolio of projects across the Defence, Nuclear, Energy, Environment and Government‑Owned Critical Infrastructure sectors. We are seeking talented people who are motivated by technical problem‑solving, collaboration and the opportunity to deliver innovative solutions for some of the UK's most significant infrastructure projects. The Commissioning Manager is accountable for establishing the programme‑wide commissioning, operational readiness and handover framework for the FCAS Infrastructure Programme. The role will ensure that all future projects are designed, delivered, tested, commissioned and handed over in a safe, compliant and operationally ready state, supporting the successful transition of facilities into service across the FCAS portfolio. Working closely with Programme Directors, Project Managers, Defence stakeholders, and supply chain partners, the Programme Controls Lead will enable informed decision‑making and effective programme governance within a highly regulated and security‑conscious environment.
Key Responsibilities
- Commissioning, Operational Readiness & Handover Leadership Lead the development and governance of programme‑wide commissioning, testing, operational readiness and handover frameworks, ensuring effective integration with design, delivery and project controls. Establish assurance, acceptance and operational readiness processes, oversee testing and verification activities, and ensure all asset information, documentation and operational requirements are in place to achieve successful facility handover and operational acceptance.
- Mobilisation Deliverables Establish the commissioning, operational readiness and handover strategy, framework, processes, controls, standards and assurance requirements necessary to support successful testing, acceptance and transition to operations.
- Key Interfaces Collaborate with internal programme, delivery, controls, technical and commercial teams, alongside client, contractor, consultant and regulatory stakeholders to ensure effective commissioning and handover outcomes.
Here’s What You’ll Need
Essential: Experience leading commissioning, testing, operational readiness and handover activities on major infrastructure, defence or complex engineering programmes, with strong stakeholder management and assurance capability.
Success Measures
Establish a scalable commissioning, operational readiness and handover capability that delivers defined governance, testing, acceptance and operational readiness requirements across the programme.
Mobilisation Objective
Establish the commissioning and operational readiness function required to ensure FCAS infrastructure projects are safely, compliantly and effectively transitioned into operational service.
Desirable
Desirable: Defence or aerospace experience, ORAT, NEC, ISO 55000, ISO 19650 and mission‑critical infrastructure knowledge.
What’s in It for You
- Competitive salary and benefits package, with unrivalled salary sacrifice schemes available.
- Free single medical cover and digital GP service.
- Generous pension contributions.
- Enhanced parental leave and family‑friendly policies.
- Professional development support and membership reimbursement.
- Access to a flexible benefits programme tailored to your needs, including buying or selling up to 10 days’ extra holiday.
- Hybrid and flexible working options to support work–life balance.
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.
Commissioning Manager employer: Amentum
Amentum is an exceptional employer that prioritises a collaborative work culture, allowing Senior Ecologists to thrive in a flexible hybrid role. With a strong commitment to climate resilience and biodiversity, employees benefit from meaningful projects, professional growth opportunities, and a supportive environment that values sustainable development.
