Amentum
Nuclear
SeniorProjectManager
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“Senior Project Manager at Amentum. Skills: Project Management, Leadership, Stakeholder management. Provide strategic leadership and oversight for multiple complex or high value projects. Take full accountability for end-to-end project delivery performance”
What You'll Achieve.
Completed on time, within budget, and meet stakeholder expectations; Alignment with organisational objectives and client expectations; Positive outcomes for local communities; Safely and efficiently delivering Sellafield’s decommissioning and nuclear waste objectives; Embed safety excellence throughout all project activities
Industry & Context.
Resolution of complex project issues, claims, disputes, and contractual matters; Early identification of risks, trends, and recovery actions
Work in a highly regulated and quality assured system, Work in roles dependent upon engineering judgement, Work in a collaborative “Team” environment, Work to challenging time scales, Work with Delivery Leads, Package Managers, Engineers and with support from Administrators, Contribute to the delivery of social value, Voluntary engagement is supported, Work from home, Hybrid, Part-time, Flexible working hours, patterns and locations, Disability Confident employer, Interview all disabled applicants who meet the minimum criteria, Welcome applications from candidates who are seeking flexible working, Welcome applications from those who may not meet all the listed requirements, Require further support or reasonable adjustments with regards to the recruitment process
What They're Looking For.
Must Have
Significant, minimum 10 years of experience in Project Management within a highly regulated and quality assured system in roles dependent upon engineering judgement, APM Chartered Project Professional and member of the Association of Project Management (APM) or PMI, Degree level qualification (2: 1 minimum) in a relevant STEM subject, Previous experience of taking full accountability for end-to-end project delivery performance, including cost, schedule, quality, safety, and risk across assigned portfolios, Demonstrable experience in reviewing and challenging project budgets, forecasts, and schedules, ensuring early identification of risks, trends, and recovery actions where required, Superior interpersonal and leadership skills, organisational skills, attention to detail and quality, process improvement-oriented mindset, Previous experience of managing complex project issues, claims, disputes, and contractual matters, providing direction and support to project teams, Capable of effective multi-task working, identifying and managing priorities and working to challenging time scales, Experience embedding quality and safety practices
Nice to Have
APM Chartered Project Professional and member of the Association of Project Management (APM) or PMI
What You'll Do.
Provide strategic leadership and oversight for multiple complex or high value projects
Take full accountability for end-to-end project delivery performance
and develop Project Managers and other delivery staff
Act as the primary senior interface with clients
joint venture partners
and internal senior leadership
Oversee the development
and governance of project execution plans
Provide assurance that robust project controls are in place
Review and challenge project budgets
Sponsor and lead resolution of complex project issues
and contractual matters
Ensure effective governance
and compliance with corporate
and regulatory requirements
Support business development activities
Drive continuous improvement by capturing lessons learned
Provide leadership in safety culture
Represent the organisation as a senior leader
How You'll Work.
Team & Collaboration
Work alongside Delivery Leads, Package Managers, Engineers and with support from Administrators; Work collaboratively; Work together to deliver on our promises; Work together, we become more innovative, more agile, and more successful; Work collaboratively with clients, seniors and peers; Build and maintain effective internal and external working relationships; Support one another through a culture of care and collaboration; Embrace different perspectives and work together
Communication Scope
Superior interpersonal and leadership skills; Effective interaction with clients, seniors and peers
Process & Methodology
Project Management, End-to-end project delivery, Cost management, Schedule management, Quality management, Safety management, Risk management, Project execution plans, Project controls, Programme management, Cost control, Risk and opportunity management, Change control processes, Project budgets, Project forecasts, Project schedules, Project issues, Project claims, Project disputes, Contractual matters, Governance, Reporting, Compliance, Mobilisation planning
Full Job Description
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. Amentum is a Lot 1 delivery partner within the Decommissioning and Nuclear Waste Partners (DNWP) Framework, a major Sellafield programme worth up to £4.6 billion and running for up to 15 years. The framework is focused on safely accelerating decommissioning, remediation and high‑hazard risk reduction across one of the most complex nuclear sites in the world. Our nuclear team supports the front‑end design, engineering, technical leadership a
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