Job Title: Principal Supportability Engineer
Location: Leicester or Bristol + Hybrid Working Arrangement
Compensation Attractive Salary + Benefits
Role Type: Full time / Permanent
Role ID: SF72876
Engineer availability, protect capability, and sustain the systems that keep the nation safe
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 Principal Supportability Engineer based at our Leicester or Bristol site.
The role
As a Principal Supportability Engineer, you lead the delivery of Integrated Product Support across complex nuclear and defence assets. You influence design decisions early, ensuring reliability, maintainability, availability and long‑term supportability are engineered in from the start. This role combines deep technical analysis with strategic thinking, customer engagement and technical leadership.
This is a 37‑hour per week role, based in either Leicester or Bristol with two days in the office and three days working from home.
Day-to-day, you’ll be required to:
- Leading reliability, maintainability and availability analysis to support complex engineering systems
- Developing Integrated Product Support strategies, claims, arguments and supporting evidence
- Advising design and engineering teams to improve asset availability and through‑life supportability
- Communicating complex technical information clearly to technical and non‑technical stakeholders
Essential experience of the Principal Supportability Engineer:
- Proven experience delivering reliability, maintainability and availability analysis within complex engineering environments
- Strong background in Integrated Product Support or Integrated Logistics Support disciplines
- Experience producing and substantiating supportability claims, arguments and evidence
- Practical knowledge of reliability modelling tools and analytical techniques
- Ability to influence stakeholders and explain complex engineering concepts with clarity
Qualifications for the Principal Supportability Engineer:
- Degree, or equivalent experience, in a STEM discipline such as mechanical, electrical, systems, data or mathematics
- Professional registration, or active progression towards registration, with a recognised engineering institution
Security Clearance
The successful candidate must be a sole UK National who is 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 (www.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 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: 19/06/2026
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