Defence Infrastructure Project Lead — Hybrid (3 Onsite Days)

Amentum; United Kingdom; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Free medical cover (UK)

Digital GP service

Enhanced parental leave pay

Free membership of employee assistance

Parental programme membership

Reimbursement for professional develop

Hybrid/work-flexible hours

Job summary

Amentum is seeking an experienced Project Manager to join our Defence & Security team in the UK, delivering infrastructure and built environment projects within high-regulation environments. You will manage complex programmes across government and industry, coordinating governance, assurance, and delivery across multiple stakeholders.

You will operate in a framework that supports national security objectives, with a clear focus on planning, cost control, and on-time delivery while maintaining

Qualifications

• Significant track record delivering projects on time, within budget and to quality.
• Autonomous with strong relationship building.
• Consultancy-focused with ability to scope wider client requirements.
• Expertise in P3M practices and techniques and their application.

Responsibilities

• Understand, and deliver in accordance with, organisational policies, processes, and procedures.
• Support the development and assurance of business cases as part of wider approval processes.
• Analyse, develop, support, and manage the timely and cost-effective delivery of client projects, meeting business and environmental objectives.
• Influence, support, and expedite client project delivery through effective planning, monitoring, controlling, and reporting of project performance.
• Identify and effectively manage project assumptions and dependencies.
• Support identification of slippage and risk, and implement remedial or mitigating actions, ensuring compliance with all relevant safety, environmental, and management procedures.
• Champion the application of appropriate programme and project delivery strategies and commercial vehicles to secure successful business outcomes.
• Ensure appropriate services to the project are coordinated and delivered through technical, engineering, project controls, commercial, and financial support functions.
• Maintain project records, information, and history accurately and in line with policy.
• Ensure learning from experience is captured and apply continuous improvement techniques to project delivery.

Skills

Project governance

Stakeholder management

P3M methodologies

Proposal development

Job description

Amentum is seeking an experienced Project Manager to join our Defence & Security team in the UK, delivering infrastructure and built environment projects within high-regulation environments. You will manage complex programmes across government and industry, coordinating governance, assurance, and delivery across multiple stakeholders.

You will operate in a framework that supports national security objectives, with a clear focus on planning, cost control, and on-time delivery while maintaining