Senior Project Manager (Defence Infrastructure)

Start Here. Grow Here.

Are you a Project Manager or Senior Project Manager with experience delivering infrastructure projects within Defence or similarly regulated environments? AECOM’s Defence team is growing across the East Midlands and Anglia region, and we are seeking Project Managers and Senior Project Managers to support a strong pipeline of secured and upcoming work across some of the UK’s most critical and high-profile programmes, supporting the Armed Forces across the UK and overseas.

Current and upcoming projects include major infrastructure programmes at RAF Brize Norton and RAF Lakenheath, alongside wider opportunities through the CCS2 framework. This provides exposure to both UK MOD and US Visiting Forces environments across design and construction.

Our work spans the full Defence estate, from accommodation, training, and operational facilities to secure technology, aviation, and specialist infrastructure. As part of our integrated delivery team, you will help shape, plan, and deliver projects that directly support UK Defence capability, ensuring the Armed Forces have the facilities required to operate effectively and safely.

The Role

As a Project Manager / Senior Project Manager (Defence Infrastructure), you will play a key role in delivering complex infrastructure projects across the Defence estate.

You will take ownership of projects or defined work packages across the full RIBA lifecycle, from early-stage development through to construction and handover.

Working within multi-disciplinary teams, you will manage NEC contracts (PSC and ECC), engage directly with DIO and end users, and drive delivery to programme, cost, and quality requirements.

Key Responsibilities

• Lead the delivery of Defence infrastructure projects or defined work packages across all RIBA stages
• Act as NEC Project Manager or Client Representative, managing contractual processes and commercial positions
• Interface directly with DIO, TLBs, site users, and contractors in live operational environments
• Manage programme, cost, and risk, ensuring robust project controls are maintained
• Build and maintain strong client relationships across multiple stakeholders
• Support and mentor junior team members, contributing to team capability and growth
• Ensure compliance with MOD governance, approvals processes, and security requirements

Minimum Requirements

• Experience delivering infrastructure projects, ideally within MOD, DIO, or similarly regulated environments
• Strong working knowledge of NEC3/NEC4 contracts (PSC and/or ECC)
• Experience working within multi-disciplinary teams across design and construction
• Ability to manage stakeholders across client, contractor, and end-user groups
• Strong communication and organisational skills
• Eligible for UK Security Clearance (SC or higher)

Why Join AECOM Defence?
You will be joining a growing team with a strong secured pipeline, offering the opportunity to take real ownership of projects, develop client relationships, and progress within a high-performing Defence environment.

Enjoy the Perks.

At AECOM, you'll enjoy a range of core and personalised benefits designed to support your future and well-being, customised to fit your lifestyle. Take advantage of career development opportunities, our flexible hybrid working model to ensure a work-life balance that suits your lifestyle, technical practice networks, AECOM University, and volunteering days.