Senior Planning Engineer

Shape the future of Nuclear Engineering with Cavendish Nuclear. At Cavendish Nuclear we’re working to create a safe and secure world, together, and if you join us, you can play your part as a Senior Planning Engineer, at our Warrington, Cheshire or Bristol.

The role

As a Senior Planning Engineer, you’ll be at the heart of some of the UK’s most critical nuclear projects. You’ll play a vital role in shaping and maintaining robust project schedules that drive delivery excellence across the full project lifecycle. This is your opportunity to make a real impact—on national infrastructure, on your career, and on the future of clean energy and defence. This is a full-time, permanent position working 37 hours per week on a hybrid basis, with flexibility to work from home and on-site at Warrington (Cheshire) or Bristol.

Day-to-day, you’ll:

• Support Project Managers to ensure delivery on time, within scope and budget.
• Produce clear, concise reports and updates for internal and external stakeholders.
• Track progress, identify deviations, and propose recovery actions.
• Manage schedule changes in line with NEC4 commercial requirements.
• Create and maintain detailed project schedules from initiation through to completion.

Essential experience of the Senior Planning Engineer:

• Familiarity with NEC4 contracts and commercial scheduling.
• Proven experience in planning within engineering, nuclear, or other highly regulated sectors.
• Strong working knowledge of Primavera P6.
• Ability to produce monthly programme updates for customers.
• Experience delivering high-value, complex projects across the full lifecycle.

Qualifications for the Senior Planning Engineer:

• Professional certifications in planning or project controls would be advantageous.
• A relevant engineering or project management qualification is desirable.

Security Clearance

The successful candidate must be able to achieve and maintain Security Check (SC) 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 Cavendish employees to buy additional leave or to sell up to one working week of annual leave from their annual entitlement.
• Excellent development opportunities and benefits package including an employee assistance programme supporting physical, mental and financial wellbeing.
• ‘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.

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 careers@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: 01/06/2026