Job Title: Principal Planner
Location: Warrington, Bristol, Newbury or Leicester + Hybrid Working Arrangement
Compensation: Competitive Salary + Up To 15% Bonus + Benefits
Role Type: Full time / Permanent
Role ID: SF
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 Principal Planner at one of our Cavendish Nuclear hubs.
The role
As a Principal Planner, you’ll have a role that’s out of the ordinary. You’ll be embedded within one of the UK’s most complex and high-value defence infrastructure programmes. Working on the PP&E project, you’ll be stepping in at a pivotal moment, where your expertise will help shape the long-term direction and success of the programme. As a visible leader, you’ll mentor fellow planners, promote consistency across planning outputs, and help define the strategic direction of the planning function. You’ll also have the opportunity to lead initiatives and drive improvements across a diverse and impactful portfolio.
Day-to-day, you’ll play a key role in influencing long-term outcomes across a major programme, with significant opportunities for leadership, innovation, and career progression.
1. Oversee planning governance across the PP&E programme
2. Provide leadership and coordination across Aurora and AFS sub-programmes
3. Support onboarding, mentoring, and development of planning professionals
4. Manage and develop a team of planners, working closely with Project Control Leads
5. Champion consistency and best practice across delivery teams
The role is full time, 37 hours a week. Flexible and Hybrid working arrangements with 2 days on-site in one of our Cavendish Nuclear hubs and 3 remote days per week.
Essential experience of the Principal Planner
6. Demonstrable leadership in a planning function within engineering or defence programmes
7. Strong understanding of planning governance, assurance and quality
8. Extensive experience using Primavera P6
Qualifications for the Principal Planner
9. A degree in project controls, engineering, or equivalent experience
Security Clearance
The successful candidate must be able to achieve and maintain Standard (BPSS) security clearance for this role. Further details are available at
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 Nuclear
As a leader within the UK nuclear industry, Cavendish Nuclear, part of