Senior Project Manager - Nuclear Decommissioning

About the role

Amentum, a Lot 1 key delivery partner within the Decommissioning and Nuclear Waste Partners (DNWP) Framework for the Sellafield programme, is recruiting a Senior Project Manager. You will plan, execute and close projects on time, within budget and to stakeholder expectation, working alongside Delivery Leads, Package Managers and Engineers with support from Administrators. The role contributes to social value and voluntary engagement of up to 16 hours per full-time equivalent.

Key responsibilities

• Provide strategic leadership and oversight of multiple complex or high-value projects aligned with organisational objectives and client expectations.
• Take full accountability for end-to-end delivery performance, including cost, schedule, quality, safety and risk.
• Lead, mentor and develop Project Managers and other delivery staff, including performance management and succession planning.
• Act as the main senior interface with clients, joint venture partners, regulators and internal senior leadership.
• Oversee project execution plans, programme management, cost control, risk and change control.
• Review budgets, forecasts and schedules, and sponsor resolution of complex issues, claims and disputes.

Required profile

• Minimum 10 years of project management experience in a highly regulated, quality-assured system requiring engineering judgement.
• APM Chartered Project Professional or PMI membership.
• Degree (2:1 minimum) in a relevant STEM subject.
• Proven experience of owning end-to-end delivery performance and of challenging budgets, forecasts and schedules.
• Strong leadership, interpersonal and organisational skills, with a process-improvement mindset.

What we offer

• Competitive package for UK employees, including free single medical cover and digital GP service.
• Enhanced parental leave pay, free membership of employee assistance and parental programmes, and reimbursement of professional development and memberships.
• Hybrid, part-time and flexible working arrangements discussed individually.