Principal Electrical, Control and Instrumentation Engineer

Job Title:                     Principal Electrical, Control and Instrumentation Engineer

Location:                     Flexible, UK + Hybrid Working Arrangement

Compensation:            Competitive Salary + Benefits

Role Type:                   Full time / Permanent

Role ID:                       SF68239

Shape the Future of Nuclear Engineering

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 Electrical, Control and Instrumentation Engineer, based at one of our key locations – Moor Row (Cumbria), Warrington (Cheshire), Leicester (Leicestershire) or Bristol.

The role

As a Principal Electrical, Control and Instrumentation Engineer , you’ll have a role that’s out of the ordinary. You lead the design and delivery of complex EC&I systems that support safe and efficient nuclear operations. This is a high-impact role where your technical leadership will shape the future of clean energy and national defence.

Applies Engineering concepts and theories to provide technical direction and leadership for the delivery of designs, calculations and technical solutions across a range of applications for Babcock products and services across the Engineering Product Lifecycle. Uses their experience to make decisions in complex situations. Able to work under own initiative to produce high quality outputs. Capable of managing others and or delivery of engineering and technical activities, through the application of process, domain knowledge and experience. Can apply a broad and or deep range of knowledge to complex situations whilst extending their business knowledge base in the subject area. Provides coaching, direction, assistance and mentoring to others

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 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:   25/09/2026

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