Senior Project Manager

Job Title:                     Senior Project Manager

Location:                     Flexible, UK

Compensation:            Attractive Salary + Benefits

Role Type:                   Full time / Permanent

Role ID:                       SF72231

Lead Complex Projects That Power National Security

At Cavendish Nuclear, we’re working to create a safe and secure world, together. If you join us, you can play your part as a Senior Project Manager at any of our key locations including Warrington (Cheshire), Bristol, Newbury (Berkshire) or Leicester (Leicestershire).

The role

As a Senior Project Manager, you will take a leading role in the successful delivery of complex, high-value infrastructure projects that are critical to both nuclear defence and civil decommissioning and fuels programmes. You’ll be responsible for ensuring projects are delivered safely, efficiently, and to the highest quality standards.

This is a full-time position working 37 hours per week. We offer flexible hybrid working patterns, with typically 2–3 days per week onsite, alongside occasional travel to other UK locations as required.

Day-to-day, you’ll be required to:

• Lead governance arrangements, establishing clear roles, responsibilities, and accountabilities across the full project lifecycle
• Drive project performance through robust financial planning, cost control, and the effective application of Earned Value Management (EVM) techniques
• Champion continuous improvement by engaging project teams and adopting innovative tools, practices, and technologies
• Ensure the highest standards of health, safety, security, environmental, and quality (HSSEQ) compliance across all project activities
• Manage and inspire multidisciplinary teams spanning engineering, procurement, and commercial functions to achieve project objectives

Essential experience of the Senior Project Manager:

• Proven experience delivering major infrastructure projects with values exceeding £50 million
• A strong track record of managing full Engineering, Procurement, and Construction (EPC) project lifecycles, from concept and design through to construction and commissioning
• Demonstrated leadership of large, multidisciplinary teams (typically 50+ people) within complex and highly regulated environments
• Practical expertise in applying Earned Value Management to enhance project control, reporting, and decision-making
• Experience gained within regulated industries such as nuclear, defence, utilities, petrochemical, or aerospace sectors

Qualifications for the Senior Project Manager:

• Project Management certification or accreditation (such as Association for Project Management or Project Management Institute) is advantageous

Security Clearance

The successful candidate must be able to achieve and maintain Standard (BPSS) security clearance for this role. Further details are available at United Kingdom Security Vetting: clearance levels - GOV.UK (

What we offer

• Generous holiday allowance
• Matched contribution pension scheme, with life assurance
• Access to a Digital GP, annual health check, and nutritional consultations through Aviva DigiCare+
• Employee share scheme
• Employee shopping savings portal
• Payment of Professional Fees
• Reservists in the armed forces receive 10-days special paid leave
• Holiday Trading is a benefit that allows UK Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement. This Window opens February through to March annually.
• ‘Be Kind Day’ enables employees to take one working day's paid leave a year (or equivalent hours) to undertake volunteering work with their chosen organisation or registered charity
• Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.

Cavendish

We’re Cavendish Nuclear — a team of c5,000 specialists and a core part of Babcock International Group.

Here, you’ll be part of something bigger. Across clean energy, defence, and civil decommissioning, your work will contribute to projects that are critical to energy security and national protection. Together, we’re shaping a future that lasts — not only through the impact we make, but through meaningful careers that respect your work-life balance.

Join us and discover how far we can go, together.

We are a disability confident committed employer. If you have a disability or need any reasonable adjustments during the application and selection stages, please email View email address on jobs.babcockinternational.com with the subject header ‘Reasonable adjustments requirement’. We’re committed to building an inclusive culture where everyone’s free to thrive. We are happy to talk about flexible working – please ask about alternative patterns of work at interview.

Closing date:   29/06/2026

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