Package 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 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 are a key focus area for us.

About the Opportunity

Amentum is a key 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, and delivery expertise required across the DNWP portfolio. We are looking for individuals with high-value expertise from across regulated and comparable sectors who can work collaboratively, embrace new challenges, and contribute to the mission of safely and efficiently delivering Sellafield’s decommissioning and nuclear waste objectives.

Role Purpose

As a Package Manager, you will be responsible for overseeing the planning, execution, and delivery of project packages, ensuring scope, schedule, budget, safety, and quality standards are met across stakeholders and teams. You will report directly into the Delivery Manager or Framework Manager and conduct work alongside Delivery Leads, Package Managers, Engineers, and with support from Administrators.

Employees will be expected to contribute to the delivery of social value in line with the DNWP framework, supporting positive outcomes for local communities. Voluntary engagement is supported, with up to 16 hours per full-time equivalent allocated.

Key Responsibilities

• Planning and coordinating all phases of identified package of works, including project initiation, planning, execution, monitoring, and closeout.
• Establishing project objectives, scope, and deliverables in collaboration with stakeholders and ensuring alignment with client requirements.
• Developing and managing project schedules and resource allocations to ensure timely delivery.
• Liaising with support functions and subcontractors to monitor progress, resolve issues, and ensure compliance with specifications and quality standards.
• Managing procurement processes, including bid evaluations, contract negotiations, and vendor selection.
• Supporting project budgeting and cost control and managing change orders to ensure adherence to budgetary constraints.
• Conducting regular site inspections to assess project progress, identify risks, and ensure compliance with safety protocols and regulatory requirements.
• Using established procedures to solve problems and suggest pragmatic solutions.
• Maintaining effective communication with project team members and stakeholders to provide project updates, communicate address concerns, and foster strong working relationships.
• Developing comprehensive project plans, including timelines, resource allocations, and procurement strategies.
• Coordinating and overseeing scheduled activities, ensuring adherence to project schedules and specifications.
• Evaluating and selecting contractors and subcontractors based on qualifications, experience, and cost-effectiveness.
• Monitoring project progress, tracking key performance indicators (KPIs), and reporting on project status to stakeholders.
• Ensuring compliance with safety regulations and legal requirements, prioritizing a safe working environment for all involved.
• Managing project documentation, including contracts, permits, drawings, and change orders.
• Conducting regular meetings to facilitate communication, address challenges, and to meet project objectives.
• Providing regular updates and reports on project status, including milestones, budget updates, and any significant developments or risks via OPR’s.
• Implementing and enforcing safety protocols and ensuring compliance with local building codes and regulations.
• Carrying out thorough project evaluations and assessments to identify areas for improvement and implement necessary corrective measures.
• Providing guidance to the project team, fostering a collaborative and high-performance work environment.